I'm 6'5" and was as high as 299.9

in June 2007 (currently in the 265 to 270 range. I went from a Cannondale Super V to a (21") 2005 Giant Reign with a Manitou Swinger 3-Way Air.
I've never had to put more than 200psi in the Manitou air shock on the Reign. To say I prefer the ride of the Reign over the Super V would be a huge understatement.
You don't state your riding style or preferred terrain type, so I don't know if a 6" travel bike would be overkill, but they also have a Trance X with 5" travel.
You can find used specimens of the Giant Maestro type FS bikes (Reign, Trance & Anthem) for pretty reasonable prices if you are resourceful.
Me and my 'trailbike':
My advice is to start a list of bikes you're interseted in and ride as many of them as possible before getting the one that feels best to you. There are a lot of bikes that work very well for clydes. At 230lbs, you don't really have to be super concerned so long as you don't go all 'weight weenie' on your component choices. At your budget figure, that's not much of a possibility anyways (just sayin').
At $1,000 to $1,200, I would shop for pre-owned, but loved bikes or very deeply discounted (new) old stock to get the most for your money because a $1,000 to $1,200 new FS bike is going to need upgrades to survive frequent use and perform decently.
JMHO.