In my last house, I had a long galley kitchen, Loads of cupboards and all with good, solid wooden doors. But in dark oak - made it all very dark.
A few years ago, I looked into brightening it up. Could not afford, or even really wanted a whole new kitchen, I was quite happy with the layout as it was. Looked into new door and drawer fronts. Not only was I horrified by the quotes I recieved for these, but it would be replacing those lovely solid wooden doors with cheap plasticy ones.
Then I found a company that came in, took off all doors and drawer fronts, took them away for a week and sprayed them (could have had any colour - I chose white), brought them back, carefully re-fitted them all, ensuring they all hung well, even put some new knobs on them for me,. Cost me about a fifth of what new, cheap doors, etc would have cost. Very little hassle. Indeed,having a week without those doors gave me the impetus I needed to clean and tidy all the cupboards.
Would really recommend this way of brightening up any kitchen.