@Hydrogen,
Konichua and panda1 are right. If you mine for coins you will be able to collect more, and the best way to do this is registering in a mining pool.
There are several to choose from. You can start from here: https://en.bitcoin.it/wiki/Comparison_of_mining_pools
Not sure if you have a great computer or a great graphic card, but here's an estimated value...
Mining at a rate of 20 Mhash/s in about 24 hours you will be able to get around 0.01 BTC.
If you have a better graphic card you will be able to collect more!
I wish good luck, and good mining!
how did you get that estimate of 20 mhash/s in 24 hours is around 0.01 BTC?
i mine at around 270 mhash/s. 13x faster, granted it dont leave my computer on 24/7 but that should mean i would get about 0.1 BTC in about 2 hours and that is clearly not the case. not even close.