my god, real honest advice on gfy
i agree with what has been said, but if you MUST try your hand use just a little bit of money and try a couple TGP's or other types of sites that demand that you learn the ropes by knowing a little of everything:
traffic, bandwidth, programming, networking, design, etc.
Work it with ONLY the money you initially put into it, For 3-5k that should allow you to buy all the scripts, traffic and bandwidth you will need to give it a real "college try" pardon the pun for a few months of running a real traffic generating tgp.
If you can stand the long hours, and often paltry retuns on your money then continue forth, but if (as i suspect most newbies do) that this isnt the biz for you do what others have recommended and go to school, or invest in somthing tangible like real estate.