I'm quite sure numerous people here have ordered from NewEgg - just got some stuff mahsef. Excellent service and always a pleasure to deal with. Makes the things you spend a few bucks more on worth the $$
I'd guess anyone other than a Dell-like service wouldn't have as much experience with what you're after, so if you have the experience, go it yourself, or stick with a Dell wannabe - you're relying on someone just like yourself (essentially), so it's the same crapshoot, or the higher Dell $$