Can anyone tell me how big these cards are? In comparison to the LOTR autograph and costume cards? Would they fit into the normal screw down holders and toploaders?
Sorry to be so inquisitive

I'm looking to buy a Harry costume (black) so if anyone has one spare?
Ok, first things first. The costume & prop cards are quite thin really, nowhere near the thickness of the LOTR cards. They fit nicely into a soft-sleeve & then I've put them into Ultra-Pro Super Thick Toploaders, available from Matt here :
http://www.toydisplay.co.uk/cgi-bin/webreal1.exe?SOURCE=proddet.src&API_PRODCODE=5408&k_API_CAT1=TRADING%20CARD%20SUPPLIES&k_API_CAT2=SINGLE%20CARD%20SUPPLIESThe same applies to the case loader motion cards. The auto's are the same as LOTR.
Now onto the Black Robe card you are after. If you mean the one limited to 100, I haven't got one yet; if it's the 750 one you are after, yes I can help so drop me a line with an idea of price.
Hope this helps
CJD