If you go to http://bitcoincharts.com/charts/mtgoxUSD#rg60ztgSzm1g10zm2g25zv you will see that the down trend is still very much in play. Buying now is gambling. wait for the trend to turn first, then ride it back up, "the trend is your friend" yes you will miss the bottom if you wait for the trend to form.
This man has the right of it. If your looking for a bottom your just going to get frustrated because odds are you will blink and miss it.
If u are able to check in regularly the wait till the trend turns else buy soon and just wait it out.