Drastic - 11:21 pm on Apr 9, 2002 (gmt 0)

Incorporting plusses:
May be able to avoid some self-employment taxes in certain situations.
You have some personal protection from liability, but still limited.
Seems to give your biz a bit more legitimacy.

disadvantages:
Costs a couple to a few hundred bucks
Good chance you'll need a CPA
Taxes are considerably more complicated
More paperwork

Since you are just starting, you may be better off waiting until you establish yourself before getting into the mess of incorporating.

disclaimer: in my limited research these are the things I found, you may want to seek professional advice.