Interface upgrade time...

I just bought a pair of new mics that I'd LIKE to use simultaneously with a 'main'/center mic in perhaps a 3-mic-setup. Unfortunately, I've got only a PreSonus Audiobox, which gives me a grand total of two inputs.
I don't have a very specific budget, but let's say $200 and under- does anyone have a recommendation for a 4- or 8- input interface that plays well with Win7 and SONAR X3, and hopefully has better-sounding preamps and better 48V routing options than the Audiobox?

The FP is a solid piece.  Old converters and pres, but acceptable.  I had mine a long time ago and can't remember what the latency was, but it worked fine with SONAR and Sony software.  I gave it to a cousin for his band - the singer already had one and you can run two as a 16 I/o combo.  In short, it should be fine.  I actually liked the lower fidelity on an old Jimmy Rodgers cover than my replacement TC.
 
If you were closer you could borrow the TC unit.  I talked to cousin about that one, too, but he never bothered to get it. PM me.

I don't know about daisy chaining - just heard it was possible.  And you lose the spdif in/out too.  There may be a firmware update, too.

Be aware the FW is not being supported by Win10 and future updates may break it over and over again, requiring you to fix it again and again. At some point Win7 will go away and you'll be forced to upgrade. Not sure I'd invest further in FW at this point.

Since it looks like I'll be making a purchase on a couple of new Firewire cables, I figured I might as well go ahead and get the processor upgrade I've been looking at for 7 months.
Question is what type of upgrades are going to make the biggest difference in performance?
 
- I've heard about dual-channel mode on RAM. right now my setup is using 3x 2GB ram sticks and 1x 1GB stick, but I don't know if that is hurting my computer's ability to run in Dual-channel mode since the second pair isn't matched.
 
- My current processor is a decent, stock quad-core, but I'm considering moving up to a hexacore - specifically this one. Any thoughts? Comments?
 
I figured if I wanted to do a little bit of lightweight gaming now and again, I'd also want to upgrade my video card. Would doing this have any noticeable effect on the running of the software or anything?
Here's what I was looking at.
 
So I've got a little quest ahead of me. I'm not quite sure what I'll want to upgrade to achieve better performance in general, so hopefully you guys can help point me in the right direction.

dpotseluev
Not identical memory modules not good for stability. Now good performance for audio recording is 8gb or 16gb RAM. Processor - need more cores and MHz for realtime FX support. Video card not get much more performance for sound recording, only for software interface. General - processor.

Pretty straightforward- thanks, Dan! So going for a more powerful CPU (6 cores @ 3.1Ghz) will certainly be a good upgrade against my current system (4 cores @ 2.6Ghz).
I'm going to buy another RAM stick to balance out to 8gb - looking at my usage, I rarely, if ever, go over about 5gb, so spending up on 16gb for a machine from 2009 probably wouldn't be worth my while.
I'll hold off on the graphics card for a while. I won't be doing much gaming or graphics-work in he near future anyway!

Have fun.