Woo 2 tha Hoo
Maybe success! After a lot of testing yesterday I determined that it was my modem and my Darla24 that weren't getting along. I found a Unimodem Audio Device that was installed along with the modem and disabled it and have had no crashes since. I let Cubase run in a loop while downloading last night and it hadn't crashed after 8 hours of play. Also I reinstalled all my keyboard and mouse drivers and haven't had any problems with them since as well.
So it's looking real promising that both random lockups have been solved. My heart still jumps any time there's a delay though because I'm afraid it has crashed. I would like that to stop.