http://www.resellerratings.com/seller6897.html
I dunno. They've got a rather low score with Reseller Ratings, and I honestly wouldn't buy anything from a company with anything lower than an 8/10.
While the combos do look good, they use rather crappy video cards as the base, but otherwise they look alright.
I haven't bought from them, but I've heard outstanding things about
Monarch Computers. They can do custom systems for you, and have over a 9.5/10 with Reseller Ratings. I've been pleased with Newegg, so I usually buy there, but I'd look at Monarch if I were looking for a prebuilt system simply based on their ratings.
Even if you do get a prebuilt rig, you're looking at around $350 for a 17" LCD, and those are on the low-end.
$1,000 for a gaming rig with an LCD included is going to be pretty tough to do.
If you're going to go that route, don't get anything less than 512MB of DDR. Don't skimp on the power supply either. Get either Antec or Sparkle/Fortron and at the very least have a 350W.
Look in to getting a CD-RW/DVD-ROM combo drive. Unless you absolutely have to burn DVD's, this will do all you should need. Samsung is inexpensive, but of high quality. Stay away from ultra cheap stuff like Optorite drives.