Acer has announced that its "space-saving" Aspire X3 and M3 series desktops are now are The Aspire M3 gives you a little more room for future upgrades with a micro tower case. Customers can choose between an AMD Athlon II or AMD Phenom II processor and either ATI HD 5450 or NVIDIA GeForce 9200 graphics. Acer didn't disclose the available memory on the M3 but said the system offers up to a 640GB hard drive, two available PCI Express x1 slots, 10 USB 2.0 ports, 5.1-channel audio support, and bays for an extra optical drive and hard drive.