In the movies all we got to see was the Snowspeeder, but unless they unveil epicly large maps, I don't see them making an appearance. Various games have offered up some designs, (some better than others,) that I think would fit well along side the SC2-M Repulsor Tank.
http://starwars.wikia.com/wiki/Rebel_combat_speeder
This one looks like a landspeeder that has been converted to military use. This has precedence not only in the movies, (Gian Speeder, Episode 1,) but also in the real world. Converting civilian vehicles into military platforms was seen recently in the middle-east. It does fit well with the fluff, with the rebels taking what they can get and using it as best they can.
http://starwars.wikia.com/wiki/AAC-1_speeder_tank
This one cuts a more distinctive and purpose built figure. It looks high speed/low drag. Those v shade rocket pods really make it stand out, and the dual cockpit give it a rebel vibe. It was also a ton of fun to pilot in Battlefront II.
Anyone have any other designs that would make a good fit?

