I'd like at least one good shot (not with helmets on, please, for the racers) of all the major characters (minus Kyoko, I'm not a fan of her, and Claire is down the list too.)
However, I'll collect pretty much any good-looking Jackie Gudelhian or Franz Heinel (the two together are also faboo
) cel, so if anyone finds anything/wants to part with anything, feel free to give me a shout. 
I'm not as interested in car shots, but I wouldn't say no to few good Gold/Silver Steel or Spiegel cels (Franz-designed cars.)I currently have:
1 Bleed Kaga cel
1 Franz Heinel cel (by himself)
2 cels with Franz and Jackie together
1 cel of Jackie (w/Stampede) and Lope (w/Condor)
1 cel of Jackie in his helmet
1 cel of Randoll in helmet
1 cel of Bleed and Hayato
So as you can see, a solo Jackie shot sans helmet is high on the priority list for me.
I prefer OVA cels (or in other words, any series but the original TV series) but it depends on the shot. I have one original series cel so far, and the rest are from the OVAs.
Thanks for your help!