slowness on mac. Please help!

[Matthew Campbell]

Hi guys and girls hope your evening is going well. I need some help  
with a small problem my mac is encountering. After I type my password  
at the log in screen after a restart or a cold boot my mac takes for  
ever to get to the finder and when it gets there finally VO is slow  
when responding to commands for like 5 or ten minutes after. What the  
heck is going on? Please help as this is extremely! anoying! Thanks so  
much for any help. Enjoy the wrest of your evening.