The Pyrotect Open Face Helmet ($189) is one of the best bang-for-the-buck open face helmets on the market. It features a lightweight fiberglass shell, a removeable & washable air-flow liner, interchangeable cheek pads, and is Snell SA2010 rated. Available in white, black, or flat black.
> Buy at SoloRacer.com

The
RCi Snell SA2010 Helmet ($199) is one of the most affordeable full face Snell SA rated helmets on the market. It features a super strong lightweight shell, contoured eye port with molded .125 Lexan shield, fire resistant Nomex lined interior, and an adjustable Kevlar chin strap.
> Buy at SoloRacer.com