For classic colours I really like the old Apple italicised font. It's the font that was on the first real computer I used (Apple IIc) and while I didn't like the keys on that keyboard, I really liked the font.
An all-white board with that font in black would rock, IMHO!
I'm also a fan of the Dolch scheme and a few more radical ones, like black and orange. Basically anything but beige or unicorn vomit (busy mix of bright colours). I like nostalgia and retro as much as the next person, but I still can't do beige. Closest I could get would be C64 colours (I actually really like the DSA retro set). Why PC manufacturers chose to make so much stuff in beige is beyond me.
I would also love a "Guinness" board. Dark brown case and unmarked cream caps. I also like the Portal 2 retro Aperture Labs colours. All warm and... brown. Homely and inviting somehow.
I think you'll have a hard time finding a couple of colour schemes that everyone will like unless they're "classic", like all-white, all-black, Dolch, etc.
Double shot PBT caps would be icing on the cake if you could arrange it!