Getting my Desire soon so i have some question i hope you guys can help... i did search but i figure out asking will be faster... pardon me if the question is asked before... will unrevoked rooting be enough?

1.) I plan to root... but i dont understand what is the ROM and all... what exactly is that? not the steps, but what are ROMs inside android phones? and why exactly is rooting gives more space?

2.) Micro SD card.. do i simply just slot in or must i do something about it first? is yes what?

3.) It seems to me Leedroid is good i wont ask how to apply... but rather.. will it have the screen and gestures and everything same as the original desire? because im impressed with the original one already..

That's all my doubt... for now..

Thanks in advance...

Holy Shit. HTC battery = 229. O_O

It's an option bro.
The radio affects your signal / wifi / 3g.

You can try the radios to see how it affects your signal. =]