They are exactly the same machine. I actually called sizzix and asked before I made the plunge.
I love their dies, check out the sizzix
websight to see the new XL dies!
They have actulaly finally made some usable boxes, treat boxes, etc. They are terrific. I bought a few and even sprang for the new doctor's bag. It is as cool and functional as the picture and ad depects.
I love my sizzix! There websight has lots of new and fun ideas for all your paper crafting needs. No I don't work for them, but that would be a sweet gig!
Have a stamp happy night!