Just got this in my email that Amazon.com is having a great sale on their midwest black ex-pen. It is the 24 x30 size with 8 panels. No door. It's pretty big, but you can fold it up into other shapes so it's not so big.
It was originally $96 but now is $35 with free shipping. Hard to beat that price! Just thought I'd share the link in case anyone was looking for one.
Amazon.com: Midwest Black E-Coat Exercise Pen, 24...
If the link doesn't work, just go to amazon and do a search for midwest black pen and it will come up.