If you decide to do the lift first, check out PMF. I've found with them you get a little more value for the money, and they actually use Icon coils so you can get the same Icon type ride or better, for a little less. For just a mild lift, I have a 3.5'' lift from them and its a really nice height as far as function goes. Tall enough to look lifted, but not enough to be a burden.
Here's a link to their site and the kit that I have. I just added a 1'' spacer from them to get to 3.5''. That is actually my truck in the pics as well.
Link:
http://www.pmfsuspension.com/2011-13-25-Alpha_p_95.html
And also, when you get to doing steps, check out AMP steps. Again they're pricey, but so, completely, worth it.