The main difference between the 370 and the 372 is the speed the box opperates at.The 372 is much faster than the 370 due to the extra ram chip installed in the 372.
The 372 still suffers from the same problems that the 370 has but these can be totally eliminated by a couple of simple mods.
Check out the Glitchy box thread for details.
I agree with Daniel that the 372 in standard form is not a good box.
My 372 works as well as my Humax T1000 box and it runs cool with no slowing down.
John