Well I've been fiddling around with various tools and I made these nifty little (well, my first attempt was 12mb, so < 2mb for each of these two is little by comparison) gifs from the latest Stargate SG-1 episode. Whee 
"Emerson to Flight Operations; Release the gate."
http://images.mzzt.net/animgif/releasethegate.gif 1.7mb
Whoosh!
http://images.mzzt.net/animgif/slingshot.gif 1.4mb

"Emerson to Flight Operations; Release the gate."
http://images.mzzt.net/animgif/releasethegate.gif 1.7mb
Whoosh!
http://images.mzzt.net/animgif/slingshot.gif 1.4mb