My white imac takes ever so long to load up, after i turn it on.....help pls

whenever mine slows down I clear the cache/history and then repair permissions. That speeds it up some. Good luck.

Main menu is your best friend. http://www.santasw.com/ Heres the link. I would clear all your caches and history. After you do that post back and tell us if anything helped.
-Robert

Mine's slow right now, too, but my problem is that my hard drive is about maxed out. My user folder is huge, too.

I had it in at the Apple Store getting fixed about a month ago, and they wiped it (I had my TM backup) and it was blazing fast with nothing on it.

Wish it could be like that all the time! 🙁

You could consider to never shut down your iMac ever again.
I decided to only log-out of the system and from what I've experienced it keeps my iMac running smoother, quieter and quicker than shutting it down and restarting it every day.

Last week I had shut down my iMac after an extended period without restarts. After the restart applications like Safari and Mail started up much slower than with a simple log-out.
Normally my iMac is very quiet, but after the shut-down and restart it made much more noise.
I had to repair the permissions and run some maintenance scripts to get the system back to the quietness and the speed it had.