Well, if your CSS skills aren't that good you could hire someone to make a style; i for one have a bunch of ubb styles available.
The styles aren't that hard to make, it just takes time and knowhow to put css into the editor and update it, it's fairly straight forward if you've worked with css before.
You can see some free styles at
http://www.ubbskins.com/ it's run by Rick of the UBB.