What site are you ordering off?
I HIGHLY recommend one of these depending on what you want to spend.
Newegg.com - G.SKILL 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Retail
Newegg.com - G.SKILL 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Retail
From either Tigerdirect, or Zipzoomfly. I'm looking for a semi budget build, so getting ram for ~$100 is pretty much out of the question. That's why I'm really wanting to get either the Ballistix or the OCZ since I hear both are very good, and they are selling at a really great price now with the rebates. They usually sell for $120+.