I use 1 kettle, and 2 coolers (1 HLT, 1 MLT) for my setup. Its pretty basic and entry level for AG brewing.
Boiling Equipment: Blichmann Burner, 10.5 Gal Kettle
Beer Bottling Gear: Bottle Tree, Beer Gun, Bottle Capper, 9x 5 Gallon Corny Kegs, 1x 2.5 Gal Keg. 2 Tap Kegerator