yep, all too familiar with them midnight shifts here too. At least I get a lot of internet time on mine, and I've spent the past couple weeks reading the manuals for my Black Knight as well as all the pages on pinrepair.
I do think it might be crossing the line though if I bring my driver board in, and start swapping components on it at my desk.
That being said, I've bought a lot of little electronics components off of e-bay over the years. Sometimes you're stuck getting it from China, but often you can get great deals from US sellers with good feedback too. I just bought a 100 piece stack of 1N4004 diodes from a guy in Kansas for $4.00 including shipping. Radio Shack wants $1 per diode, IF they have them.
-Hans