In order of distance from Port Townsend:

Henery's Hardware

Brush mowers, weed trimmers, a chainsaw. Also a Toro walk-behind loader.

A+ Equipment Rental

Both small and large equipment: Toro walk-behind loaders, Bobcats, excavators, cherry pickers. Floor sanders, tampers, augers. Pressure washers, chainsaws. Scaffolding.

Just Ask! Rental (part of Hadlock Building Supply)

Bobcats, excavators, chainsaws. List available online (http://ww3.truevalue.com/hadlockbuildingsupply/Rental.aspx).

Home Depot

In Sequim.