Thanks all -- please keep the suggestions coming!

Just stopped at the local WM and picked up the Maguiars Gold Wash/Shampoo ($6/big bottle), M. Ultimate Detail Spray ($9.50), and saw the tube of Scratch X ($8) and Turtle Wax Ice wax (~$15).

Same stuff at the local Advance Auto. Nether had the Zaino or Nanowax wax, S100 Gel Wheel Cleaner, Poorboy's Bug wash, or spoke brush I was on the hunt for. Nor 100% cotton wash mitt -- only synthetic ones, and one lamb's wool.

Best not-too-harsh wheel cleaner that I might find locally?