I'm looking for a relatively cheap bag (<$50) for my "13 MacBook Pro (it's also in a speck case), iPad, kindle, hard drive and power cords. Nothing too fancy but I'm away for weekends a lot and between my husband and son I'm always bringing all of these things with me and they don't all fit in the one case I have now. Obviously the smaller the better but too small and it won't fit all of this. Any suggestions?? TIA!