Dude, you're getting a Dell!
Darn.. When I saw this thread, I was dying to say this. Heh
BTW.. I have bought Dell systems and I build my own systems and you aren't free from messing with your system just because you buy a pre-built from a place like Dell. A good friend of mine has been through the ringer with 2 of his systems after the first one was replaced with a refurb because they couldn't figure out how to fix the first one.
I'd say buy a Dell if you want to buy something and then just go out and buy something else when your machine is too slow and you've maxed out your RAM. The Dell systems are actually more of a headache than custom builds when you go to upgrade because of the proprietary stuff (custom Intel power plug on the mobo and PSU to name one).
Also, if you know anything about computers, it's just easier to troubleshoot stuff yourself than to either wait on hold for a few hours for tech support or a few days of playing email tag with a tech, that probably doesn't know more than you do in the first place.
Will I ever buy a Dell or any pre-built machine again? If it's a laptop or if it's a machine bought by my work. Or.. If I find a great deal on the forums and want to turn a quick buck eBaying it.
Just my thoughts..
BTW.. Every Dell I ever owned was very quiet. I think that's one of the reason's why Dell is sticking with Intel. You don't need loud fans to keep the cpu cool. Also, because the Intel chips generate less heat, you're less likely to have a space heater for your room with your system.

Actually, I think Dell likes the less heat thing because they like to "shrink wrap" their cases. There really wasn't much leftover room in any of the cases of the Dell's that I had.
Sal