Go with a plain colour helmet and put stickers over. Ones that have multicolours are normally stupid looking. Like people have said, you cant go wrong with the smith maze/holt and I/Os, they are made to fit perfectly together.
Do you wear your goggles under your helmet? If you do, I would suggest some Smith I/O and a Giro Shiv or Revolver. Both low-profile and they don't have velcro on the inside, so you don't have to worry about your beanie or goggle strap catching.
"I'll ask a serious question that I don't want lingering out there.Is it cool if I hook up with a 14 year old? But just make out? She has boobs." - ECB$
"dude, hitting rails or a wallride in a full radiation suit would be hyphy as fuck." - pomme-de-terre