I want to start commuting whenever/wherever possible. That means I need a new bike. Oh I know, I don't really need a new bike...but I only have one and I just really can't see taking my Terry to get groceries.

I do own a Huffy-type mountain-bike that is about 9 or 10 years old. It's in fine condition, although I wouldn't call it a quality bike. I also have an entry-level bike trailer (can't take both my kids yet, as one is only 7-months). But I think I could probably haul stuff in there in needed.

Anyway, I've got my eye on the Xtracycle and I was looking for opinions. Has anyone used the conversion kit? What about the Electra Townie SUB (here: http://www.xtracycle.com/electra-townie-p-87.html). Seems like a fairly reasonable price - is it worth it? Is there anyway to also hook a bike trailer up so I can bring the kiddos when they are both old enough?

Here are a few options:

-use my existing MB and my bike trailer to haul groceries. Free, but slightly a PITA to ride the trailer around.
-buy a conversion kit and convert my existing MB. I think about $400?
-buy the Electra Townie SUB. $800-ish

I'd love any opinions. Thanks!!