Here is an exploded view of a typical Price Pfister single-handle faucet. To take it apart, all you would need is the small allen wrench that hopefully came with the faucet (to remove the handle, after you removed the plastic cap that covers the set screw) and a channel locks to unscrew the knurled cap and to pull out the cartridge. You would also need to buy some plumber's grease for $2.00, which you can get at any hardware store.
You would have to turn off the water to the faucet first. The shutoffs are under the sink. The tricky part would be getting everything back together again.
http://www.pricepfister.com/website/documents/Products/PRD_8art_14960_ex-534-01.pdf
Any good handyman would do this for $40.00. (At least I would).