Cool!
Yeah, keep your humidity around 35-45% IMHO... below 50 is said to be the norm but I prefer a little lower just in case. For heat, 68 night, 78 day (farenheit, sorry... I think basically ~20-25C?) is really nice, and make sure the difference between night and day is about 10 degreesF, but not more than 15.
There are plenty of cheap thermometers that also show a %RH number. Just poke around your hardware shop and see if you can find one. I paid something like $6 for my thermo/hygro combo at stupid wal mart.
Snug in the node is a good thing. Watch for hairs in a couple days at most. They will be hard to spot at first. If instead of hairs, it grows up out of the node on a stalk, you have problems.