I just found something weird...the vb_cache table was 1.2 Gigabytes in size...just for the table...

So I cleared the cache and it dropped down to 300K...Home page load times should be significantly faster now, because there was a cache query that took 3 minutes to load.

Also, I think we're goign to look into keeping it MyIsam and going with a Sphinx solution...I've read good reviews...more info to come.