WHat a bad day.  Tried to replace my older video card with a newer one, and the PCIe support came off with the old card!  I have another PCIe slot, not 16 but 8, and was able to install the new card in that slot, but that covers up my PCI slot, so no UAD1 for now.  Now it may take 2 weeks and $100 to fix/ship the mobo... so I thought since it it 2 yrs old, I'd maybe update things.  
Well, dang, newer mobos don't have firewire for my Saffire Pro 24, so I guess I'll need a card.  Seems they are posturing to use Thunderbolt but it's not widely available... and I'm not sure that firewire to thunderbolt adapters are really made for audio.   The other issue is my mobo used a nifty mSATA SSD, which now seems to be used for laptops and not in ATX boards anymore... so maybe I can get an adapter to hold the mSATA and mount it in a drive bay.  Thankfully they still make mobos with PCI slots for the UAD1.  What else can go wrong?
Q:  I guess I'll need a PCIe 1394a card for the Saffire?  Any driver issues or products to avoid?  Win 7-64.
Q:  I could use a PCIe adapter for the mSATA SSD instead of a SATA adapter card... This is my C: drive so I was concerned about bandwidth and usability... any thoughts or should there be no difference?
 
or would u just fix the mobo and stick with everything until Windows 10 and the nextgen proc?
 

Another issue, most new motherboards do not have a true PCI slot.  The PCI slot is a "bridged" slot to the PCIe bus.  Many PCI devices do not work or work correctly with the bridged slot.  Even a Gigabyte GA-Z77 UD5H motherboard I have only has a Bridged PCI slot.  Same way with the ASUS Z77 motherboard I have on my backup system.  I had to replace the Gigabyte motherboard, too many problems with it (even after Gigabyte replaced it under warranty), and now using an ASRock Z77 and it too is a bridged PCI slot.
 
Other issues, depending on the CPU and memory you have, the CPU and Memory may not be compatible with new/current technology motherboards. 

Dang technology is right. The problem always being it advances and leaves you in the dust with good equipment that won't work anymore Dang.. 

hey fireberd, that is exactly the same mobo that i have that I pulled the PCIe support out of it... you'd think they'd be glued down or something other than 3 small supports that go thru the board.  I think it's a great board, but being 2 yrs old, you can't get it any more.  I had no issues running the UAD1 PCI card on the PCI slot, tho.   Running an i5-3570 proc on it w 16Gb ram.
if i upgraded, it would be to like an i5 4570 or the like, (4000 series), so the ram would be good.

Check your PM.