Unfortunately I don't have that much CG stuff yet! Just the Lelouch figma, a pencil board, mini posters that came with a magazine and a few doujins, though of course those don't count as official merch 8D;;
An eBay search can yield many nice results, I'm hoping to get my hands on more Geass stuff at the end of this month, especially the Suzaku portrait fig. AND I-DOLLS!!