We finally decided to break down and went with a slightly stripped down Alienware. We would have actually gotten a Dell 710, but the customer service was severely lacking and they didn't want to give us enough credit for their no-interest promo. Odd considering we got approved for almost double from Alienware who have an even better no-interest promo going right now.
The Alienware rep was
very helpful, answered all questions easily. The best thing about the purchase is that I'll easily be able to upgrade the videocards (has the SLI slots and power supply already in there), RAM to 4GB later and there is a 4-year in-home and all that fancy warranty stuff on it. We certainly paid a large premium (just over $4000 before taxes & shipping) but for both of us it's worth it as both our last systems were DYI and we're sick of not having a real warranty on our main workstations.
Went with the following configuration:
Processor: Intel® Core™ 2 Extreme QX6700 2.66GHz 8MB Cache 1066MHz FSB
Operating System: Windows® Vista Home Premium
Motherboard: Alienware® Approved NVIDIA nForce 680i SLI Motherboard
Memory: 2GB Low Latency DDR2 Performance SDRAM at 800MHz - 2 x 1024MB
System Drive: Single Drive Configuration - 500GB Serial ATA
DVD ROM: 18X Dual Layer DVD±RW/CD-RW Burner w/ Nero Software
Graphics Processor: 512MB NVIDIA® GeForce™ 7950 GT
Power Supply: Alienware® 1000 Watt Multi-GPU Approved Power Supply
It should be noted that once the Dell option when out the window I called the AW rep for case-related questions and then decided to buy. I will also admit that I've wanted an Alienware for quite a while so that did weigh on the choice a bit. The future-proofing also played a big part. My next choice would have been a VoodooPC, BTW. But the cost was getting way up there for the config I wanted.
The unit should be here before the end of the month and I'll post a review. Thanks to all for the advice! ENworld sold me a Dell, but they weren't sellin'.
Of course they got my money anyway as they own Alienware but you get the idea...