thanks for all the replys guys, its helped me a bit, i think your right about the 475 being direct competition to the 470, nvidia would want to sell nearly all there gtx 470's before introducing the 475. and i think the 460 would be a fairly big upgrade, since its nearly the equivilant of the last generation 285. i live in australia too, so i cant buy from newegg, atleast i dont think i can. so for me an evga gtx 460 sc (1gb version btw) will cost me about 300 bucks. ive also considered a radeon hd 5850, but the lowest price for one ive seen over here is $370 and the gtx 470 is way too much $420 upwards... i think i'l grab myself a gtx 460 sc
besides i have an evga x58 sli micro motherboard, it would complement it nicely
and i can always sli in the future. im happy as long as i can play crysis 2 at full settings @ 1080p