"ROLLOSONIC"
I discovered Rollosonic several years ago and I have found it to be a main "tool" in my sotware synth inventory. I've used it for creating loops and in live performance. It's also 100% freeware which I think is great. I highly recommend it.
Here's the link to to the Rollosonic main page: Rollosonic home.

One song that uses Rollosonic is "Snowbolt Fury", it's available at Tapegerm.com
Download / Play: "Snowbolt Fury"   Time: 7:07   Size: 4.88 Meg
Download the Rollosonic rsc files used in "Snowbolt Fury" "Snowbolt rsc's"   Size: 1.9 K.

In 2008 I played the Tampa Noise Fest with Hal McGee and Richard Orlando. I used a laptop as my instrument and had two Rollosonic files as part of my arsenal. The file settings were manipulated during the set but I've made them available here if anyone is interested.
Download the Rollosonic rsc files used at the 2008 Tampa Noise Fest "Tampa Noise Fest rsc's"   Size: 2.1 K.