Hi Chriss,
Not sure what to say to be honest ... I've only ever worked with high-end gear (and even then I push it pretty hard). Personally I suspect that if you had anything less than around 500 w/s you might end up using apertures that start to give you DoF headaches if you're puching in close (unless that's what you're wanting). Plus, strobes that are slow to recycle don't work with my shooting style (it would break the momentum of the shoot something chronic).
My personal favourite starter kits are Elinchrom BXRi if that's any help.