Good place online to buy components?

I was curious where everyone shops online to get components and sensors? The Sparkfun.com shop has some but there are some basic components I need that Radio Shack doesn’t have and are impossible to find at my local electronics surplus store. I’m also looking to buy a bunch LEDs just to have on hand for this or that.

Thanks!

In K3 - Malmo - Sweden we use:

and a lot of junk

/David

http://www.parallax.com/ has some cool stuff