The PPWC is a good bunch of paddlers, they always plan some good trips and their website is a great place to post. After work runs are somewhat limited (comparable to Denver). Pueblo has a fantastic park about 30-45 min. away. The Royal Gorge is 1-1.5 hrs. Very few creek runs that are afterwork do-able.
You'll meet a good bunch of dudes (and a few ladies) if you frequent the PPP. Pueblo Paddlers have a website with frequent posts as well.
www.pueblopaddlers.com
You asked about a (somewhat) new creeker. I'd suggest looking for a used Burn, Nomad, Jefe (those may be hard to find). Possibly a mamba or diesel.