window regulator. check out eBay to buy it. It cost about 100-200 if u get it from Toyota and they charge you anotther 120$ to put it in.
It took me 10 min to take out everything as I have done this 3 times and about 20 min to put it back on..
The first time took me about 2-3 hrs as I had a hard time getting the door lever out.
There is one person on eBay that I bought my regulator from
http://myworld.ebay.com/am-autoparts second one actually.
So far, I have changed 3. Bought one from a person on eBay initially and the quality was so bad that it would go up when it decides to, bought a new one to replace my new faulty one from this AM dude. Works well since 04.
Just replaced another window regulator (passanger) with his parts.