Acer America today announced that its Acer Aspire Z3-605 Series all-in-one desktops are now available for consumers in the United States. The new 23-inch all-in-one includes two 3W front-facing Harman Kardon speakers, in addition to up to a Core i5 processor. The unit can be configured with as much as 8GB DDR3 dual-channel memory, and a 1TB hard drive….