Yeah, don't bother.
Seriously.
Having both worked for one of the worlds largest ISPs (at the time), and then set-up and run a hosting company for several years (taking it from just an idea the company had on paper, to a large dedicated host that's still going today), I'd say the market is too flooded.
It costs a decent amount of money to offer decent hosting (anyone can just become a reseller, but that isn't being a web host imho). It requires a very good amount of technical skill as well. I remember only too well the joys of configuring a Cisco router at 3am in the morning
Ok, so you won't have that trouble now, because most people just hire a box from some host somewhere, offer a slice of space on it (perhaps throwing in a Plesk control panel), and think that is being a real web host. Well, I guess if you manage to find some 'niche' it'll work for you, but unless you do, you're one of a billion similar 'hosts' out there. So, err.. good luck.
Bite my shiny metal ass