I don't have MSN, sorry.
As for your specs, I'd say they're pretty good. I still have to recommend the Asus (despite their color); I've had great experiences working with their boards, and my buddy (who builds computers for a living) says that, without a doubt, they make the best boards around in terms of quality (failure rate is also extremely low). I suppose if you really wanted to not go with Asus, Gigabyte would be a good second choice (as long as, like you said, you stay away from the budget boards).
I am very endeared to the Core 2 Duo series, personally; they're ridiculously low priced and the newer ones' performance is great. Now, i7 blows 'em out of the water, sure, but the price offset is, as you said, quite large. Personally, I wouldn't invest in a quad core yet unless you're going to go all-out and get an i7, since most games aren't yet optimized to use more than two cores; the only reason I'd consider getting one is to future-proof your machine, and like I said, you'd have to go with an i7.
Radeon HD 5770 is reasonable, but I'm personally endeared to Nvidia, and I know their line better; 260 if you want gaming but don't have money, 275 if you want significantly better gaming, and 285 if you've got money (295 is basically two 275s jammed together, and I can't imagine that doesn't result in some sort of latency increase along the same lines as SLI). However, these cards are significantly more expensive (except the 260), so if you want to stay with the Radeon, it's perfectly fine.
Everything else looks fine; I can understand not wanting to screw with RAID, so I won't push it on you.