As for colour combinations in general, I switch between https://kuler.adobe.com and http://www.colourlovers.com/. They both have some nice pre-made palettes.
These days, I've been preferring colourlovers mainly because:
1. Their site is plain-old HTML, rather than Adobe Flash / Air.
2. You can see a longer list of palettes in the search, and can sort them by "most loved." (See: http://www.colourlovers.com/palettes/most-loved/all-time/met...)
3. You can even search by hues and whatnot (see: http://www.colourlovers.com/palettes/search).