I've always been attracted to Ysanne Isard+Hull Upgrade(I always have to look up how to spell that) on an Imp firespray. I haven't tried it out much, but in the games I tried it with, it always netted me an extra turn or two of shooting.
I've only run in it in a (2) Firespray list, but if you pair it with Rebel Captive (in the other Firespray, of course) you make two relatively undesirable targets.
