I have a baby trend. Wife and I tried out a friends BOB before we purchased ours. Basically for less than half the price we got the baby trend with a car seat.

I might be completely off, but besides folding up a bit nicer, I didn't notice much of a difference between the baby trend and the crazy expensive BOBs Thules etc. For the most part you aren't going to go out and do speed work or much beyond a 30-60 minute easy run. Mainly because running with the thing sucks regardless, uphills suck, downhills suck, baby will crap mid run, its too cold for baby, its to hot for baby, baby pukes, baby gets hungry etc.

As someone said, get a treadmill.