Or if that's too expensive, another option is to paint the existing doors. Apparently there's some spray paint you can get that goes on more evenly and gives a better finish than brush on paint
You can get some pretty cheap units from DIY places these days, just make sure you get some good measuring tools if you do it yourself. Try http://www.buybrandtools.com, you can get some very competitively priced stuff there.
Alternatively as has already been suggested, you could just treat your existing units., but if it's the style you dislike you may have a problem.