Aside from a few minor glitches at start ("Say, that big heat sink isn't supposed to be banging around inside the case unattached to anything, is it?"), quickly fixed with the cellphone coaching of mammallamadevil, the machine is up and purring like a kitten.
A loud kitten with two internal fans, but a kitten nonetheless. I have named the machine Tiffany. :)
Once basics were in place (e-mail, chat, etc.), I installed various games on it last night to get a feel for the graphics capability and general coolness of the thing. Crimson Skies and Neverwinter Nights were impressive upgrades from the Pavilion's versions. Wing Commander: Prophecy was already pretty much maxed out before and didn't have any improvements to make (although there is a high-res patch out there I may play with). And of course, I installed Temple of Elemental Evil to give it a try. Jury's still out on that one, purely from a gameplay POV ("Uh, WHY did you have the barbarian talking to the temple priest when I specifically sent my cleric to do that?"), but the graphics are pretty nice. Badly needs better character portraits tho ... ugh.
Still to be done: install Photoshop and Dreamweaver, get the SCSI card and scanner up and running, install and configure the drawing tablet, and begin the long process of transferring stuff OFF of the Pavilion, so that can be wiped back to Win98 for a "play old games" machine.
Oh, and rebuilding the MP3 library... ;)
I need to draw at least four strips this weekend, too; I been slacking!