ASICs will most likely be too expensive for the casual miner. there will most likely be GPU mining for a while, it just won't be particularly profitable.
200-300 bucks for a 5gh miner? A good card costs more and does just maybe 20% of it. ASICs will screw the difficulty.
Lol. You're thinking of BFL. Realize that they're never going to deliver and that they are in fact a cleverly designed scam. xD