Just wondering if it also has a regular analog output (maybe line level as well as phono level). If not, make sure that it will output WAV files as well as MP3- I consider the latter to be completely useless if you need to edit them (as you will).
I've took a quick glance at the Ion (sp?) USB turntables at Best Buy- the case is all plastic- I was not impressed with the tone arm at all.
I have a analog Numark turntable that I use for all of my vinyl rips so I think its a good brand.
I've been using ClickRepair 2.1 to clean up the rips- it removes the crap and leaves the music, but you will probably want to do some manual cleanup after it.