Hey Brian -
Two things... Chipguide is getting there. There are a lot of submissions being added every day and eventually it will get there. But Paul Hegge's site (www.silver-state-treasures.com) is a great resource for pictures of all Nevada chips. It should be complete for all the $5's (except possibly the last 3 that were just added).

Downside is that it doesn't specifically show what the current rack chips are. So if you have a question, post it here and you'll have a response in no time.