What are the simple things i should be careful about (like bleach) for my first time brewing?

Another thing... don't use bleach! At your local brew shop, you'll find a product called StarSan. It's probably the most popular product for sanitizing stuff, for a very good reason. It works and it's easy to use. You won't have a Clorox smell to deal with and bleach can be a pain to rinse out completely and is disastrous to your stainless steel.

That said, sanitize everything that will go anywhere near your beer. All of the utensils, fermenmter, siphon, tubing, and everything else that the liquid will touch post boil. I even use it in my airlock.

Make sure you sanitize everything. Make sure you aerate your wort properly before pitching your yeast. Make sure you've got an air tight seal on your FV along with suitable blow off. As Denny said, try to control your fermentation temp. And be patient when it's fermenting. Don't open the vessel, don't shake it. Just relax and let it happen.

Fermentation temperature is often overlooked and it's really the key to making good beer. If you don't control the temp, everything else you do doesn't really matter. I prefer most beers to ferment in the 63-65F range. Whatever you do, don't let the beer get over 70F. That's beer temp, not room temp. Due to the heat created during fermentation, the beer can be as much as 10F hotter than the room.