Here is what I had in mind:
1:JetWay JM26GT3-SVP Micro ATX AMD Motherboard
2:AMD LE-1660 2.8GHz AM2 45W Single-Core Processor
3:Kingston 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800
4:Western Digital Caviar SE WD800AAJS 80GB 7200 RPM SATA 3.0Gb/s Hard Drive
Looking at your system, I shouldn't have any power issues. I am still undecided on the power Supplies with integrated Startup/Shutdown Controllers. Also, Im debating the Ram. The MB has dual channel support, so I think it would be better to have two sticks. If I go too big, the boot time will decrease. And I don't know yet if the bios has the quick boot option. Wait and see I guess...
Oh, and I love your budget %. True, true, true.