QUOTE(Norfolk DJ @ Apr 1 2010, 07:51 AM)

Enjoy. Hope that the Mk 2 is reliable

Yes, the Mk1 had the PSU+Overheating problems, Mk2 has a better amp and so doesn't have this problem.
Google;
mackie 450 overheat
All things fail at some point, hopefully it'lll always be a quick fix.
There are issues with some V1's.
The V2's I've got run at about 40C all night. Anyone thinking of getting V1s should run them at gig levels for a while before commiting.