Yamaha DTXpress/DTXplorer/DTXtreme

I was at a friends house over the weekend that has a Protools system. 
I had a blast recording and working on groove ideas and songs using 
my DTXpress kit. I am wanting to set up my own small home studio for 
further exploration of my own song writing ideas.

I'm curious to know what other DTXpress owners are using as a home 
recording setup? Computer based? Non-computer based? Software and 
hardware? Cost?

I have read many posts of people who are recording at home, but I 
haven't been able to get a clear picture of the equipment necessary 
for a basic setup.

Thanks to all who respond!

Cary