My friend owns the ProRower H20 RX-850. It is a good rower, I like it. It is fairly expensive but a quality rower like the ProRower will have longevity, you will not need to buy a replacement in a year.
Yikes, are average priced rowing machines prone to short life spans and breaking down? I'm also interested in purchasing a rowing machine as I already have an exercyle and like having the option to work out at home on busy days. Perhaps I should invest in a more expensive rowing machine so that it lasts longer.