2.4 Page Size

In my noviceness, I downloaded and installed about 100 plugins for my Multisite.

In hind sight, I should have done this on a test box, etc.

However, it seems a ton of script calls are being made. Even if i deactivate every plugin. Many are pig sized Javascript.

So is it possible that even deactivated, many plugins leave script calls in headers? or is this something else? While my site is no skinny and fast girl (jq slider with 150kb sized images), these script calls seem a little insane.