Well, I'd *like* to say that I'm a collector 
of "GX", but I'm still new to the addiction (eh, 
hobby ^_~) and currently my only cel from it is 
en route from Japan, a *gorgeous* cel of a split 
screen of Shagia and Garrod!!^^ Mecha is the 
easiest to find, but last I checked, Anime Taro 
just got in a really nice Roybea for only $17 
USD. Other than that, my only advice is to try 
Yahoo! Japan auctions through Celgal. 
All "Gundam" is listed together, but there's 
currently a heap of Jamil, one Sala, an oversized 
of Kid and his two techies, the boys in swimming 
trunks, a *great* Shagia and a couple of group 
cels (most with the Doctor from the Freiden). 
They had one of Carris, but it just closed. Most 
even have matching backgrounds! That's where I 
got mine. Good luck!

Aww! Whizbang, I'm jealous! You have the Frost 
brothers?! My current obsession (well, one of 
them) is getting an Olba Frost cel!! I just love 
him!! So, Accuracy, you'll have to fight me for 
Olba!!