The ThinkCentre M90z, with a starting price of $899 and available Thursday through Lenovo channel partners, features a 23-inch display that can be upgraded to a touchscreen for an extra $100, Dominici said. Processor options include Intel Core i3 or Core i5 chips and Morrisville, N.C.-based Lenovo also offers a choice of a hard disk drive or solid state drive. The unit is built for Web conferencing, according to the vendor, and a new feature for a Lenovo all-in-one -- an easily opened back casing -- makes upgrades and maintenance simpler for IT departments.