« on: December 18, 2012, 12:46:38 AM »
Congratulations on your 9-month-old! And congratulations on having the instincts of a good father!
I am older than you, but I sold my 2-year old Harley Davidson the week after my 2nd daughter was born, and now I have 3rd baby! Funny thing is, it hurt a little at the moment because of my pride, but given the joy of the kids I honestly never (almost) miss it.
The thing is, your main photo interest has kind of changed too. I found that having a baby around seriously decreased my interest in landscapes (and travel shots!). You need at bare minimum a kit capable of taking great baby shots. You will NEVER get those precious days and months back ever. And at 25 with a baby it probably doesn't seem like it, but you WILL have money again some day! Honestly!
I agree with Neuro that you won't get a lot for a used 5D2 nowadays. I'd be inclined to keep it for that reason, but if not, then a T3i (also as Neuro said) or even a T2i, would be great with your nifty fifty for baby portraits. If you kept your 5D2, maybe an 85mm f/1.8 or a 135mm 2.0?
Bright side: The way bodies depreciate, and lenses stay theh same, you can sit out for a few years, then buy a new design body that kicks the butt of current cameras, and you can re-buy the lenses for the same price you sold yours!