I got the second Arch setup running. Essentially what I did was call the second HDD in the grub boot file, which after the fact seemed really simple. I guess that happens a lot when working in linux.
The Arduino is also coming along nicely. I got 5 photoresistors, 1 force resistor, and a continuous servo in the mail last week. I ordered from SparkFun.com and I must say, I'm not impressed.
I ordered with regular ground shipping, which costs a surprising $8.98. On top of that, it took another 9 days before it finally showed up. I wouldn't be surprised if it came from say; Japan or Australia. But no, it came from Denver, Colorado. I'll be sure not to order from them again.
I haven't forgotten about the solar tracker. I'll work on that when I have some more time.
For anyone interested, I'll be sure to go to this years Indiana LinuxFest. It looks like it's going to be March 25-27 at Wyndam Indianapolis West Hotel. It looks like it's free, but rumor has it there is also a supporters package for around $60 that includes a t-shirt. I'm a little cheap, so I don't think I need a t-shirt for $60. Sorry guys.