Video editing software

[WiNgNuTz]

Hey guys, I know some of you are good with video editing and suchlike, I'm after some free software to combine and edit together a few video clips I've taken. Not purely because I'm broke, but mainly because I resent the idea of spending out on a piece of software I'm rarely going to use.

I've got Windows Movie Maker on my machine, but it's just not doing it for me, it just seems to do the most basic bits, and thats about it. In short, I'm hoping to make a 16x timelapse video, but slowing back to realtime in a few spots for added effect. I'm either after something that can do that, or some instruction on how to make Windows Movie Maker do it!

Thanks in advance.