Both my cabs are 8ohm Mesa Powerhouse cabs.
My existing amp is a Mesa walkabout 300w which is fine and not had any problems with it sound or reliability. In fact I've never been in a situation where I needed anywhere near the full volume of the Mesa.
I'm taking the opportunity now to upgrade my rig so I can get the best quality, not neccessarily more volume, I can afford for my bsses.
I've won an F-X1 on ebay which is on its way and I already have an SF-2. I guess till i get a power amp I could just go into the power section of my mesa amp.
Jazzyvee