Okay, I was off by 5 bucks - it's not $30 instead of $25:
Taragana | Translator Plugin Pro
This isn't a recommendation, mind you - I haven't used this plugin myself, just remembered a
discussion about it. The blogger who bought the plugin back in January was giving it a good report in March, and I see she still has translation enabled on her blog (
Lighthouse News) as of this date - so that's a good sign.
Hope this helps!
edited to add:
Ha! speedy Dan snuck in here ahead of me, while I was still looking for the link... but there, you've got your firsthand feedback!