Good idea. To do it on a low budget, cover fronts with contac paper and then replace handles. Contac comes in lots of nifty colors, so you can create a modular Bauhaus look by using primary colors and white. Contac paper is a plastic film and will stretch to some degree. Wrap the edges.
To go fancy (which is what I am trying to do) is to find a metal former an redo theh door and drawer fronts in stamped stainless steel with a horizontal direction fine brushed finish. This will look terrific and zap your kitchen into the 21st Century.
Let meknow if you have any cabinets left over. I need three 30" wides with 6" drawer and double doors and one 24" wide with 3 or 4 drawers.