Ive said it before, but here it comes again...
Ulead SmartSaver is the best I have seen, especially for JPEG's. It
allowsy you to choose subsampeling methods as well as setting the
compression ratio, which is something most other image reduction
packages will not let you do.
Futher features include...
Before and After file sizes
Can be installed as a plugin for Adobe Photoshop or run separatly
Simultanious Before and After viewing windows (see the origional
and the changes as they take place).
Best of all its only $39.95 (US Dollars). Hows that for a sales
pitch? (Your right we should try make a living outa this Zenbeer!!!).
Find out more, and get a 30 day trial version from :
Hope this helps