Too much to consider like what trails you ride and the type of riding you like (XC, jumps, flow, tech, etc) ... But as a generic answer I always recommend the Marin San Quinton. Round up your budget to $1,000 and you get A LOT of bang for your buck and that price point. Of course there's other considerations like availability, and if you'd buy online or prefer a LBS ... I'd be a bit more descriptive with your question so people can recommend something more specific. Location always helps too. Good luck!