Here is a good list of resources for images and fonts I use in my design work:

Expensive

• Getty Images Creative Express
  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).

Inexpensive (but good)

• iStockphoto.com
  One dollar for low-rez images and two-three dollars for higher-rez images. This is my favorite site.
• Fotolia.com
  High quality and cheap prices, excellent resource.
• Dreams Time
  About one dollar for high-rez images for members.
• Shutterstock
  750 royalty-free downloads per month for $139 (US) subscription.
• Fotolia
  One or two bucks an image.
• 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.
• Photocase
  A German site (English and German versions). Low-cost download options.
  Stockxpert
  Great pricing and great images. Easy-to-use site. Uses credit system.
• ShutterMap.com
  From $1USD to $4USD for high-rez.
• Jupiter Images and PictureQuest
  Jupiter Images and its PictureQuest division offer high quality rightsmanaged and royalty-free photo collections.
• JuicyStock
  This is a great resource for affordable, royalty-free photographs of people and places from around the globe.
• Veer
  Veer tends to be a little more hip and edgy than its competitors. It offers both rights-managed and royalty-free photographs, illustrations, fonts, and stock video.

Free (but not bad)

• Morgue File
  Providing “…free image reference material for use in all creative pursuits”.
• Flickr’s Creative Commons pool
  Search the myriad photos people are sharing on flickr by the type of CC license.
• Image*After
  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.”
• Stock.xchng
  Close to 200,000 photos. Some gems in there if you look.
• Everystockphoto
  Indexing over 283,000 free photos.
• Studio.25: Digital Resource Bank.
• Freepixels
  About 2000 photos.
• The Photoshop tutorial blog
  This cool blog has a laundry list of free photo sites.
• Robin Good
  Has a good page dedicated to helping you find good images.

Fonts (free or cheap)

• 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.
• 1001freefonts.com
  4000 fonts for $9.95 (download).
• iFree
  This Australian site links to free stuff in Australia and worldwide, like fonts, freeware, etc.
• 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.
• HighFonts.com
  Database of about 3000 free fonts.