Little pet warehouse have another 100cm cage - the Kensington. It looks weird! Also doesn't look safe for hamsters to me - those gaps in the end panels they could get paws caught and end up hanging by a leg.
The Kensington Rat Hamster Small Animal Cage
Attachment 53591
The Grosvenor 100 is well and truly available at little pet warehouse now - in black or grey.
Grosvenor XL Rat Hamster Small Animal Cage - 100 x 54 x 39 - Grey