Two right now, Spike and Cotton, as seen in the siggy below.
They are neutered males, adopted as a pair from Challenger's House in Toney, AL. They're littermates, found abandoned in a ditch at four weeks old by the rescue organization, nursed back to health and adopted by us at four months old. Cotton is deaf, and the rescue insisted they be adopted together because Spike looks out for him. We wouldn't have dreamed of separating them and they've become such a joy in my life over the last 10 months.
I'd like to increase our resident cat population to three, but I'm working on hubby, he's not really into that idea yet, but I'm not giving up. ^_~