ram vs. bit question

i dont exactly know what im talking about, but from what ive heard, a 32 bit system cant handle more then 4 gigs of memory at one time, this is pressing for me because im buying 8 gigs for a new computer, but if its a 32 bit OS is there a point in buying all that ram?

Oh evrybuddy i am bilding a databass servar.  thats y numbar of RAMZ is so important and OS is not important at all.  I will use watever OS allows me to use the most RAMZ.

OP:  You're planning backwards.