He just said that he has never overclocked. There is no need to get overclocking RAM when you arent overclocking. Overclocking RAM does NOT give a performance increase over generic/valueram unless you are overclocking. gtrdude, you have chosen good RAM for what you use it for.
From the review I have read and from personal experience, I would recommend the MSI K8N Neo4 Platinum ATX AMD Motherboard
($135.00) or the GIGABYTE GA-K8N Ultra-9 ATX AMD Motherboard
($126.00) instead of the Asus that you choose.
I noticed that you are getting a mobo that is SLI ready. I kinda think that SLI is overrated, and pretty unnecessary when you already have a 6800GT.
Dont bother with SATA-II. Although the interfaces allow for greater speeds of data transfer, the hard drive itself wouldnt be able to keep up. Therefore, SATA-II is kinda useless (for now). I also recommend Seagate or Western Digital hard drives, due to their performance and reliability.
Someone is gonna tell you that the PSU that comes with that case is crap. It is actually just fine. It is rated for more than what the computer needs, making up for it being no-name.
As for newegg, it seems like a good site. I have never ordered from them because they dont ship to Canada. But, everyone else seems to think they are good.