There are some minor incompatibilities, but most importantly
Lethal Weapon runs smoooooooth as butter.
I've heard that the 060 is generally okay in a 1200 wedge case. Should I concerned about heat issues?
You might want an Apollo if you want to close the trapdoor. The CPU faces upward, but the RAM limit is 32MB. Back when I had my Blizzard, I recall leaving the trapdoor off and raising the machine a little to keep things cool.
