1.  Valspar Cabinet Enamel Paint - It is only available at Lowes.  A gallon will set you back $49, a Quart is $28.  This Oil Enriched Paint can be mixed to ANY color you can dream up. Most cabinets only require one gallon - just to give you an idea of coverage.  This paint is thinner than most paints and is best applied in multiple thin layers using a foam roller.  Note:  It will drip if you apply it too thick | It will remove previous coats if you don't allow proper dry time. 

2.  4" Foam Roller - I love these little guys. I think it goes without saying, but you need a handle and one of those containers to put the paint in.

3.  Short handled Purdy Brush - great for nabbing that area under the counter, baseboards, trim, the bits next to appliances and alongside the walls.

4.  Small detail brush - angled brushes work best but any will do, these little guys are paramont in covering those hard to reach spots the foam roller and purdy are too big for. I usually pick up a Craftsmart pack of brushes from Michaels.

5.  Painters Tape - I have a fairly steady hand and do not tape everywhere.  I feel painters tape gives you a false sense of security as the paint oozes under and leaves you with muttled lines.  Yes, I know there are tricks to avoid this, but I vote steady hand.  I only use this to block areas I am most likely going to accidently hit with the foam brush:  appliances, shelves, the inside lip of the cabinet.  I also use this to mark the cabinet doors so I know where they go when I am finished and ready to install.

6.   Drop Cloth - this gives me a place I can put my things and not feel bad about it.  Fun little side note I am one with a paint brush and my spidey senses tingle when paint drips. I quickly wipe this up with my finger and swipe it on my clothes.  Professional, right?

7.  Papertowels - a damp papertowel wipes away any accidental drippage that requires more than a finger swipe.

8.  120 Sandpaper - I use this to rough up the surface and help dislodge any kitchen spoodge.  We all have kitchen spoodge.  Don't feel bad about it, I won't judge you, promise.

9.  Pink Sponge - After dusting the sand away with a papertowel, I use these pretty little pink sponges to degrease and ensure no dust is present before any paint even thinks about making a debut.

10.  Degreaser - I have a bottle of concentrated commercial grade cleaner that I use.  Ultimately you want to use something that will cleanse and NOT leave a residue.  Residue equals paint not properly adhering and could lead to unsightly spotting and pealing.

11.  Ziploc Bags - I store my paint brushes in ziploc bags while not in use and to store hardware.

12.  Permanent Marker - great for marking cabinet doors and drawers so there are no guessing games when putting things back.  

13.  Ladder - ya know...for those hard to reach places.

14.  Press and Seal - works like a charm to cover the paint tray when not in use. Or to line your paint tray with for easy clean up.

Side Note:  I am not paid to say any of that.  These are my honest and completely unbias opinions.