Inexpensive (but good)
One dollar for low-rez images and two-three dollars for higher-rez images. This is my favorite site.
(2) Dreams Time
About one dollar for high-rez images for members.
750 royalty-free downloads per month for $139 (US) subscription.
One or two bucks an image.
(5) Japanese Streets
Excellent source for Japanese fashion, street scenes, people, and much more from right here in Osaka. About $1.50 per pic via paypal.
(6) Photocase. A German site (English and German versions). Low-cost download options.
(7) Stockxpert. Great pricing and great images. Easy-to-use site. Uses credit system.
(8) ShutterMap.com. From $1USD to $4USD for high-rez.
(9) Creative Express (Getty Images). With Getty's Creative Express you can buy one-month or one-year subscriptions and download up to 50 stunning images a day. The Express catalog has 75,000 great Getty images. The license works differently for subscription, but this may be a wonderful option for the right project (check out the FAQ). I will be using this for certain.
Free (but not bad)
(1) Morgue File
Providing "...free image reference material for use in all creative pursuits.
(2) Flickr's Creative Commons pool
Search the myriad photos people are sharing on flickr by the type of CC license.
From their site: "Image*After is a large online free photo collection. You can download and use any image or texture...and use it in your own work, either personal or commercial."
Close to 200,000 photos. Some gems in there if you look.
(5) Everystockphoto. Indexing over 283,000 free photos.
(6) Studio.25: Digital Resource Bank.
(7) Freepixels. About 2000 photos.
(8) The Photoshop tutorial blog. This cool blog has a laundry list of free photo sites.
(9) Robin Good has a good page dedicated to helping you find good images.
Fonts (free or cheap)
(1) 1001 Fonts.com. A lot of free fonts. You get what you pay for, but many are pretty good. Find by most popular, highest rated. Articles, message board, etc.
(2) 1001freefonts.com. 4000 fonts for $9.95 (download).
(3) iFree. This Australian site links to free stuff in Australia and worldwide, like fonts, freeware, etc.
(4) Indezine on fonts. There are so many font sites out there, I trust the folks at Indezine to narrow it down. They list about ten.
(5) HighFonts.com. Database of about 3000 free fonts.
("Elvis" image from iStockphoto.com)