I am putting in SSDs just before July 4.

Here's my situation. I have a fast and quiet laptop with two quiet, normal hard drives. Everything has been running great with Sonar and all of the various plug-ins. The music sounds great!

But over the past year plus I've been adding more programs and Kontakt libraries etc. Although I have defragged my disks several times, the boot up process has been getting slower and slower. I have gotten to about 70 percent full on my main drive with the OS and all of the programs, and the second drive that contains my Sonar project files is getting near 50 percent full. In any case, everything is definitely slower now than when I first got the laptop, even though it's still fast while working with the files after everything has booted sufficiently.

So I'm taking the plunge and putting in two 1TB SSDs this week.

I'll note here in a follow up post if this was a tragic choice or it has worked out as I hoped.

I'm backing everything up with Acronis, so I believe after I've put in the SSDs I'll just need to restore from Acronis and everything will be just like I had it, only faster. I've used Acronis often enough to restore entire drives that I'm confident that will work out.

You should be fine. I do that kind of disk to disk imaging at work all the time, works without issue so long as you don't change the interface mode (like change it from AHCI to legacy or something).
 
You will love the speed increase. Your computer with disks has always been slow, you just didn't know it until you got SSDs :D. Heck you can do silly things you'd never try before like have something playing in Sonar in the background and go load another program, like a browser. It is just near impossible to bog your system down when you have fast SSDs, it is very nice.

I'm going out on a limb by using up all of my music funds for this, but I'm gambling this will work out so that I'm stoked.

Samsung 840 Pro 500GB and 840 EVO 1TB ssd's in my laptop was the best thing I could have done for it. It would be hard to go back to platter drives now.

I went with two of the 1TBs you have above.

I think you will really enjoy them. The system is going to be spunkier and if you use samples on the other drive you will notice a difference in loading times!
 
I do notice things start to slow down if I run much more than 880 GB on the 1TB drive. I think it requires the extra space for proper housekeeping functions.
 
I always keep my laptop power supply connected to an APC UPS due to electrical outages in our area and I have noticed a slight increase in available run time on the APC and on battery power since I installed the ssd's vs. the platter drives.
 
I Wish you much success and enjoyment.
 
Kind regards,
Rick

I haven't noticed much improvement by running SONAR projects from SSD, but it's an undeniable blessing for OS/Apps drive. For now I'm using a 250 Gb Samsung 840 EVO disk for the OS and a 3Tb Toshiba HDD for projects/samples/documents/storage. Pretty happy!

When funds permit it, I'd like to get a large 2-3 TB SSD for my samples and slowly do away with my HDD. Yeah, a +1 on the OS/SSD drive....I'm still amazed at the boot up time (around 9 secs) and I'm instantly ready to go!!

The Samsungs come with a cloning utility which is quick and painless.
 
Already got an 840 Evo and an 840 Pro in my stage laptop and just put an 840 Evo in my DAW.
 
They're as fast as a fast thing!

Well, it was tougher than I thought to put in the 2 SSDs. It took me three days to get them working. But it was my fault. The result is that they are working after I got past my issues, and they perform spectacularly.

Here are some of my mistakes (don't do this if upgrading to SSDs).

1. I thought I knew what I was doing.
2. I had great success previously with Acronis, and restoring whole drives and partitions that way. I decided to go with a backup to Acronis and restore from an Acronis backup. That all worked, but didn't set a boot setting so the OS SSD just blinked stupid at me for days.
3. I had ignored the included instructions, CD, and probably fool proof method included with the SSDs.
4. I took the platter HDs out (after backing them up to several Acronis backups (just in case I did more than one), and put the SSDs into the laptop before transferring data etc to them.
Upshot - every Acronis restore method, and there are several, didn't solve the boot disk riddle.

Resolution(s):
1. I bought an external HD case for my internal drive(s) I had removed, and put the OS disk in there.
2. I used the Clone disk feature in Acronis to point to that disk and put the image of everything onto the SSD I wanted for the system drive.
3. That worked, and it copied exactly over the system partition and made the SSD bootable.
4. I used a partition software to set up my partitions on the SSDs.
5. I restored all of the other partitions from the 2 drives using Acronis as usual and everything was put back to its exact spot.
6. Final result - my laptop has never performed so fast or looked so inviting to get back to the music.