SanDisk has a new way to take music on the go with their Sansa slotMusic player. Users avoid the hassle of having to find their favorite music online and download it on a PC. The player ($19.99) simply loads the music up by inserting a 1GB pre-loaded slotMusic card containing an entire album from selected artists including Jimmy Buffett, Coldplay and Robin Thicke. Depending on the artist, the ...