Who hasn't needed to upgrade their personal workstation when running short on funds? We've definitely been there. As luck would have it, SanDisk offers all of us who are a bit strapped for cash an option for improving our aging PCs. The company announced today that its latest offerings, the Ultra SSDs, are heading out to retailers as we speak. Promising 280MB / sec reads coupled with 270MB / sec write speeds, the drives provide a welcome tune-up for, ahem, experienced machines. Random speeds on these disks clock in at up to 3G