Hi im building a gaming rig and just wanted your honest opinion on it with the ff criteria:
1. Will this pc last me a long time? (planning to overclock when the time comes but not too soon)
2. Should i wait for a better gpu or should i stick with this? go for the 6870 instead or wait for 6970?
3. If i were to overclock, add liquid cooling, and crossfire my video card will my power supply hold?
5. if you have any suggestions for my rig please add it

Here is my Rig's specs
Motherboard : LGA1366, GIGABYTE™ X58A-UD3R
Processor: Intel I7 950
Video Card: Sapphire Vapor x hd5870
Ram: 3 stick DDR3 Kingston 2GB PC3-10600
Power Supply: Thermaltake Toughpower XT 875w
Case: Antec 902
Hard Drive: WD Caviar Blue 1TB
Optical Drive: liteon DVD RW 24x

Thanks in advance...