Depending on your graphics card, a few dollars a week sounds about right. A mid-range graphics card (eg: a 2GB 6970, $300) has a MH/s of about 400, as far as I

Depending on your graphics card, a few dollars a week sounds about right. A mid-range graphics card (eg: a 2GB 6970, $300) has a MH/s of about 400, as far as I know the top range consumer graphics cards (about $1000) top out at around 1200MH/s, which is 1/4th of what the Jalapeno has. A 6970 would probably generate about $8/week at present, but the power costs will dwarf that so it's not really worth it, unless you're not paying the power bill. The major problem is right now mining profitability is dropping fast and is going to drop even faster as all these custom built miners ship, you might be able to make a few dollars a week at the moment with your graphics card but once all these custom built miners start to ship (and there's tens of thousands of pre-orders) it'll become pennies. You've missed the boat on mining profitability with consumer hardware and anyone looking at custom built miners is going to be losing money too unless the value of Bitcoin sky rockets.