I have two. One is mainly for the dwarfs as it is smaller, and has a crittertrail connector which means I connect it to Frisbee's cage. I did get it in America though. It's a crittertrail. It's rubbishly made though.
My other one for Sammy is a SAM one from Pets@Home. It was reasonably cheap. Good spacing and is well made.
I would warn you about them. They are often too small for Syrians so I would advise two joined up or something simialar. I normally join two SAM one's up on my bed over a sheet and Sammy has the whole double bed with his cage on the side which he climbs in and out of. He LOVES it! It is annoying though. As my TV is in my bedroom and I often end up sitting either in the playpen or perched pecariously on the edge. What you give up for hamsters, eh?
Also, many Syrians climb out of them straight away. I'm lucky with Sammy who doesn't but some just climb out and don't even bother too look around. If you want to get one than maybe try it and if it doesn't work take it back?
You have to supervise them in the playpen the same as the couch though. So maybe its not worth it?