Thanks guys. Actually I am looking forward to the 45nm cpu's but as Serpent says that's another year (or maybe more). Chances are, the ddr3 will be the ram of choice then and will be less expensive I'd wager. There may even be a more compatible mobo then too anyway. Ok, so much for the future.
I would have to agree with you that future-proof is therefore not a reality. So for now I think I'll go with genec's suggestion and beat the hell out of it with an overclock. Don't want to go watercooled just yet though so will stick with air for now. Think I should reach a stable 3.6 or 3.8, don't you?