Until the kid is mobile, you should be able to get some gaming in. Stick it in a rocker near the computer while it sleeps and game away (with headphones). Once the kid starts moving around on it's own, getting into stuff, and basically trying to kill itself, your time will be limited. You will have to cut deals with the missus to get some free time, and it will cost you. If it's a boy, once he reaches ~6-7, you can start playing games with him, and by age 12 he should be kicking your tail.

Congrats on the child!