Replacement fan for VisionTek GF3 Ti500

[balder]

The fan on my Visiontek GF3 Ti500 is starting to make random loud noises, and I think it is dying from the accumulation of dust. Where can I get a replacement fan? I don't want to spend too much becuase I figure I'll upgrade within a year (it's an endless cycle). Or should I just forget it and look for a GF4 4200 w/ 128mb ram?

 

[Ash2Dust]

Call Visiontek, they're sending a fan to a friend of mine when his started barely spinning.