Recommendations on best-value stock fixed gear model?
If your looking for a "beater" fixie that you don't have to worry about getting stolen and maintaining, it might be worth checking out Craigslist. I see fixies come up every couple days in my area.  IMO, its not worth spending the $ on a brand new bike to be your beater bike.

If you want something brand new, Redline makes some nice bikes that are usually a tad cheaper than the competition. They make the Urbis which I think is around $750 or so, which I think is close to the Steamroller in price, but has a disc brake (which I suppose might make it more attractive to thieves, but does add value for the price). No idea on weights though, since manufacturers rarely publish them.

What kind of budget are you looking at here ("too expensive" is a very relative term)?