Well, with the price-range I've seen for these things, I've gathered that...
EP2 Federation Tank is a simple rehash Saga Box of the EP1 Federation Tank that was pretty hard to find.
EP2 Hail-Fire Droid would be really sweet if it was some-what to scale... but at a mere $20, I'm thinking it'll be sorta like the old Mini-Rigs sold back in the day.
EP2 Geonosian Fighter should be a new vehicle with a pack-in pilot. I can't imagine it being any more out-of-scale than the gunship is...