Window, Mirror, & Cupholder...

Hi all, I have a 2000 Buick Century Limited, and I'm having just a couple problems. I have little to no experience with cars, so I'm hoping to get that kind of view point without having to pay for it at a mechanic.

First of all, I'm having trouble getting my passenger window to roll up. The motor will pull it down fine, but it won't roll up at all. Also, while driving, the window will slowly move down if I hit a bump or something like that. I had to replace my driver's side window motor a couple months ago, and that was a little expensive, but since the motor will allow the window to move down, I doubt it's completely broken.

Secondly, my Donnelly auto-dimming rear view mirror has stopped dimming itself and the driver's side mirror. The map lights still work, but you have to jostle the wires behind the mirror for it to do so. Even when the green light comes on that says that it is dimming, it never does.

And finally, my front seat cup holder broke and I have no idea where to get a new one. I haven't found any at the local salvage yard, and I can't find any on eBay. Are there any places you would recommend looking before I just bought a floor cup holder and bolted it down?

Thanks guys, any suggestions or comments are more than welcome!