| Calybos1 |
If you just need a simple head-and-shoulders shot, the free Fantasy Avatar Creator does an OK job. It's based off of Hero Machine.
| Corvino |
I'm a poster on the baldursgate.com forums and they've got quite a few threads of unsorted fantasy art that could be used for portraits.
This thread has an absolute ton of pictures. There's no way of sorting them though, and the thread has 34 pages. Generally though, if you scroll through for a while you'll spot something that matches a general character concept. Gender, Race, Class, just about every possible combination is there somewhere.