Hey guys, Currently have a 40GB Creative Zen Xtra. It's great, but I'll be running out of space in the not-too-distant future. I would LOVE to have a recharge from USB facility and for it to act as a removeable drive, neither of which the Zen does. All my collection is VBR MP3 if that makes any difference. Physical size of device not an issue. Battery life and sound quality would be. Anything fit the bill?