Beakybird,

I also came up with a way to package the things. It's quite simple really.

1) I install a metal handle to the side of the subwoofer. Bought it at Homedepot - one of those heavy duty chrome metal handle for like $2.
2) I put 3 velcros that has adhesive backing to the surface of the subwoofer. Two of the velcros are used to attach the speakers to the subwoofer for transport. The third velcro is used for the cables - all I have to do is roll up the cables and use the third velcro to attach it to the subwoofer.

So at the end of the gig, I just carry it with one hand - all the cables and speakers are attached with the velcros to the subwoofer. I just love it and so simple. Took me 15 minutes to install everything (velcros and handle) and cost me around $10 for the velcros and handle !!