Need an idea for a birthday present?

How long have you and boyfriend been dating? If your relationship is young, than bake him something or take him to a baseball game, or write him a love letter,. If your relationship is seasoned, than take this opportunity to do something different that he likes in the bedroom.

get him something he can use. I know guys like things that are useful. maybe something to do with a hobby?

i don't really agree with the whole baking thing if you guys have just started dating. I made that mistake with my last ex and he kept expecting me to make stuff almost every time I saw him. I felt like I was a betty crocker spitting out cakes and cookies for this guy.

You can always take him rock climbing and out to dinner, or some other kind of fun adventure.

How long have you been together and how much are you wanting to spend?
Depending on the kind of guy that he is, a lot of guys like new clothes, new shoes, new CDs, DVDs, stuff like that.
If you have been together a long time, just ask him. I asked my boyfriend what he wanted and he wanted me to pay for tint on his car windows. It was something I would have never thought of and it is what he really wanted. But if you haven't been together long enough that you feel comfortable asking him, I'd go with a new DVD and maybe a new shirt or 2 from wherever he likes his clothes.

Some other ideas are cologne, a watch, sunglasses, an Ipod, something for his car if he is into that, etc.
Good luck!