Win XP Pro SP2 tkaes forever to load.

Hi Guys.

This is my first post. I have a problem with my WinXP Pro SP2. It tkaes damn near forver to load. It gets stuck for about a minute or 2 at the Win XP Pro loading screen with the blue bar. I do not have any Anti Virus software on my pc. I have Deamon Tools installed and 1 game ( TOCA Race Driver 2). Out of the 120Gig HDD I have 111 Gig HHD left.

My PC Specs ae as follows :

AMD64 3000+(1.8Ghz) OC'ed to 2Ghz
nForce 4 Ultra Mobo
1024MD DDR 400 (2x512 runnid dual)
6600GT PCI-E (500/1000) OC'ed to 550/1150
120Gig Seagate SATA HDD
500W PSU

Please help....

Thanks