Here are some tips to make your mac boot faster:
Rotate your logs
open terminal > type:
sudo periodic daily weekly monthly
this command runs the log rotate scripts, etc
Repair disk permissions
applications > utilities > disk utility > repair permissions
this command repairs disk permissions, this will fix most startup issues
Thanks, really helped be out :P
I highly suggest this to any super Mac-head out there in need of speeding up his/her Mac. :-D