free

The best option is stock.xchng.

$1-$5 per photo

• istockphoto – also has a lot of great illustrations. It’s getting a bit more expensive as they grow.
• stock.xpert – great selection, clean interface, and still low prices
• fotolia – more photos, more to sift through

higher priced

• ibid has striking black and white photos.
• Also check out Veer.