If your cabinets are standard sizes you may be able to just get new doors and drawer fronts. It would be worth checking prices as you'd have more options with new doors / drawers fronts (eg high gloss, wooden, different styles like shaker, glazed, etc) than you would with just paint. It would also be a lot less mess and hassle. You might not even have to go back to your original supplier, you could just go to B&Q or Ikea.