The barebones computer isn't for sale anymore. I don't recommend barebones anyways. They usually give you really crappy parts for a cheaper price, but building is much more fun and cheaper
For $10 more before rebates ($69.99), you can get a Western Digital 250GB. That's alot of storage, and a better name than Hitachi.
I don't know much about NEC burners, other than they're expensive, and rather slow and problematic with burning, from what I've heard.
Go with an LG, same speed, same price, and very quiet. I have two LG burners, quiet, reliable, and no coasters yet!
As far as the rest of the system, how do you feel about going AMD? They have an awesome price to performance ratio, an Athlon 3200 and up could beat a Pentium D. Just see the benchmarks...
Read 'em and weep: http://techreport.com/reviews/2001q1...thlon/index4.x