Also, be sure to check out craftzine.
Arduino Bot from R/C Car
This is a popular idea, taking an R/C car and using its frame and motor drivers to make an Arduino based robot. Check out this one from Build Lounge.
Events & Activities
HMS Beagle Science Store - voted Coolest Store in Kansas City
Check out these other great Maker Friendly groups:
Local Hackerspace and Makerspace Groups
Regional Hackerspace and Makerspace Groups