[PsYcNeT]

SLI gives an increase, but the scaling variates *a lot* from card to card (anywhere from 10%-50% increase, though some card have as much as 90% scaling).

It's fairly hard to buy a motherboard that isn't crap with only one 16x PCI-E slot however, though I'm sure they exist.

Originally Posted by Brannigan's Law

Decided on getting these too:
CPU cooler http://www.memoryexpress.com/Products/MX34315

The DB level is incredibly low on this, very attractive. I've decided on the Sonata III case and a front fan for additional cooling on my HDD's with this:

http://www.memoryexpress.com/Products/MX34321 5-6.8 DB's on low load quiet mode which is all I'll require. Awesome. This computer will be much quieter than the windy little ####### I have now.

That's a fantastic after-market air cooler, but keep in mind it's a lot of money to pay for quiet. Unless you're planning to OC, you would likely be better off just getting a $30 CPU cooler and sticking an ultraquiet (like a Noctua NF-F12) fan on it.