So, I've been searching for a decent sized combo, at a resonable price, and a couple good looking deals turned up. #1 GK MB115 http://www.guitarcenter.com/In-Store-Used-USED-GK-MB115-1x15-BASS-COMBO-109697250-i3558889.gc #2 GK RB400 2x10 (looks like IV?) http://www.guitarcenter.com/In-Store-Used-USED-GK-400RB-BASS-COMBO-109768243-i3565310.gc both $299 from GC. Wondering about GC for internet purchases and shipped to different city (Madison, WI), pitfalls, experience, etc. I could call them, but I don't even like calling my own GC which is a mile from my house, what can they really tell me other than "it looks great and works?" Thanks for any help and thoughts on which amp has the most potential are welcome!