If you don't want to miss out again, buy Litecoins and Namecoins. Litecoin will never be worth as much as BTC (because there will be 80million of them as opposed to 20something million BTC) but it will slowly gain in value as it has some impressive features especially suited for online gaming payments with fast confirmation, secure online voting apps, or of course online gambling.
Litecoin is presently $1.30/each I see that going up to $4 at least by end of year now that more people are using it.