I wouldn't get a Bluray player just yet. First off, are you really going to watch movies on your PC? (Scratch this remark if you plan on hooking it up to a HDTV)
Second, the movie selection is nowhere near DVD yet, but that'll change (well.. maybe). And while they don't cost as much as they did two months ago, they will continue to drop on price as Bluray become more popular.
Find me a online store that ships to the US, and I'll put together what I'd buy today.
For comparison, my desktop is currently:
CPU: Core 2 Duo E6600 2.4GHz @ ~3.3 GHz
MB: ASUS P5KC
VGA: 8800GTS 768MB
RAM: 2x1024MB Cellshock PC6400
HD: 2x 500 GB Western Digital (can't remember the model, but I recommend WD above all other brands for quality/cost ratio)
Monitor: Samsung Synmaster 226BW
Keyboard: Logitech DiNovo Edge
Mouse: MX Revolution
OS: Windows Vista Business, Windows XP Pro (both free from school)
DVD: Sony
I've never been happier with a computer, it runs smooth and overclocks so easily it hurts. While I could assemble a computer with the same specs for half the price, I really recommend quality hardware over cheap or noname brands.
The above is bought to be a good overclocker, so you could find cheaper RAM, MB and VGA. The keyboard and mouse is a taste thing, but I really recommend ergonomic (broken) keyboards - they make a HUGE difference if you type a lot. I don't know if you use a digitizer(and accompanying mouse), but otherwise the MX revolution is a very nice mouse, although quite expensive.