Let me suggest an intel based c2d rig which will fit in your budget...
intel c2d e6300 @1.86ghz: 9-10k:clap: :hap2:
asus p5ld2 vm se: 4.5-5.5k
512mb ram: 2.8k
seagate 80/160gb: 2.2k/3.2k
cabinet: 1.2k
creative speakers sbs370: 1.2k
dvd writer: 2.2k (Go for the lite-on model...)
ups: 1.6k
monitor: This you have to decide. If you want a LCD in this budget, you might have to compromise on the viewing experience... Most lower range lcds have a response time of 12 ms... resulting in ghosting. Secondly, their colour reproduction cannot match that of a crt. So, if you want to go in for a crt, the basic 17" will cost you 4.7-5.2k... A flat crt ( for e.g LG Flatron ) will cost you around 6.5k..
Talking about newer technologies, my suggestion to let the hot product be introduced and simmer for a while...
A good lower range graphics card is 7300gt.. around 4.5k... Can overclock it and get good framerates...
PS:If you do stretch your budget, go for a gig of RAM.. And remember to buy two 512mb sticks instead of a single 1gb stick... Huge performance difference.. upto 15%...