I'll be putting my next computer together within a couple of months, and wondered what people's thoughts were on the components I've currently got my eye on. But then I thought, hey, why not make this a thread anyone can use to get opinions on what they're buying too? Be it a little upgrade, a second graphics card, or a whole PC.
And if it lets us show off a little, so much the better. 
Here's what I'm looking at now:
LG 24" LCD, 1920x1200 resolution
AMD Phenom X4 9950
Asus M3A32-MVP motherboard
4GiB Corsair RAM (DDR2 1066Mhz)
Sapphire Radeon HD 4870 1GiB
OCZ EliteXstream 1000W PSU
The usual Arctic Cooling and Zalman fan-based cooling
LG Blu-ray player
There's stuff missing from that list (HDD, soundcard, case, etc.) but I've already got those.
I've picked the vanilla Radeon HD 4870 because I can add a second one in through CrossFire at a later date if I feel like going nuts. I don't plan on waiting, either. I know Intel are coming out with their Core i7 chips soonish, for example, but they'll be too expensive anyway. (And I hate Intel for forcing their annoying jingle into any advert that so much as mentions them.)
Edit: Updated with what I actually bought in the end.