Pingdom tools provide a nice wee service to see how long your website takes to load and what individual objects make up the loading time (eg images, scripts, rss etc). Very useful to determine whats taking so long.

http://www.pingdom.com/tools/fpt/

Check out how long this site takes to load

http://www.pingdom.com/tools/fpt/?url=gilbertpellegrom.co.uk