I've been using the
Ulead GIF Animator 5 on their 15 day free trial. It works very well for my purposes, is much more powerful than and saves a lot of time vs the free Microsoft GIF Animator. I can load jpegs into it, fiddle around, preview, and see the exact file size before saving it. I thought it was $29.95 when I signed up for the free trial, but now realize that was the upgrade price. It's really $49.95, and you can't save much shopping online.
I heard
Corel Animation Shop 3 is good, and it's $39. I requested their 30 day free trial, but the link they sent me doesn't work. I'll probably call their customer support to obtain the free trial before I decide.
A couple of samples so far: