I usually drink at least a half-pint or more a day.
My favorite brand is Evan's Farmhouse from upstate. The cream comes from grassfed Jersey cows, so it's almost a pale yellow color, and very rich and sweet. There's no nutritional info on the bottle, but that leads me to believe it's pure heavy cream, and I'm inclined to trust that there is no carageenan or other stabilizers or emulsifiers. Week to week, the consistency varies a bit, so I know it's VERY fresh.
One cup of heavy cream, according to fatsecret.com (ha, I know! Not really how they would want me using the site!), contains 88.06g of fat. 54g of which are saturated, 3g PUFA and 25g of MUFA. I'm guessing that's alot of CLA and n-3 PUFA since it's grassfed.
If I'm having 2 cups a day, or more, is that too much? I generally consume about 50-60% of my calories from fat, try to eat about 90-100g of protein a day (I weigh 127) or more if I can. It's hard to consume that much, when grassfed beef is so expensive. I usually drink alot of cream in my morning tea, and then again in the afternoon in iced tea. At night I sip on it as a snack.
EDIT: I should also note that I'm not trying to lose weight, just a little stubborn belly fat. My goals are to gain more muscle mass, definition and strenght. I'd say I'm probably hovering right now at about 9-10% BF, and seeing my abs more and more everyday. Really my question boils down to: What amount of cream is too much for an optimal metabolism?