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I wouldn't think so. Should be fine.

Check through here. You could go with 2x4 or 4x2.
http://www.gskill.com/products.php?index=353&c1=&c2=

The SSD's have fallen a good bit over the past year, but they are still very pricey

I like this a lot, but you would better off to go the Sandy Bridge route now.
Intel i7-2600k
Asus P8P67 Pro
8gb (4x2gb) of DDR3 1600
and maybe an SSD.
also, the GTX570 is tempting as long as...

I would agree. At this point however, I would be tempted to take the SSD plunge with a Crucial RealSSD300, and then have a large mechanical drive for saving large files or such. I guess it depends...