As a newbie I have scoured this site and many dealers to find what to buy at the right price. I have found the following links helpful:

Canon Lenses - price list:

Sigma Lenses for Canon - price list:

Tamron & Tokina Lenses for Canon - price list:

Canon accessories price list - price list:

Canon on discount - The Oracle:

CF memory card - price list:

List of price guides for e.g. bags and tripods:

List of camera/package prices:

For a discussion on what lens to buy, I suggest the following:

Outside of this forum I suggest the following on lenses: