I use Illustrator CS every day at work. It's great, but when you try to export a legacy file (10 or earlier) all fonts get truncated so you can't edit them effectively. However, it works great by itself and you can save directly to PDF. Love it!
I imagine 10 is just as good, but with fewer bells and whistles (features and effects). Though I haven't ever used it.
I like your website! Do you use ProE for your 3D renders?