Fine Points Of A Colocation Management Agreement

We are talking with a datacentre about colocation and im hiring a third party company to manage the servers 'on site' on our behalf.

Im looking for some feedback on the 'colocation agreement' and the 'server management agreement' to make sure were covering everything.

just to be clear, Ive got a server administrator who will access the server virtually so the only points of the agreement will be those tasks that need to be done 'on site'.

the points ive looked at so far are:

colocation agreement
> 1u and 2u costs.
> Server setup costs.
> Power allocation and cost of additional amp's.
> Bandwidth overages.
> storage space for spares

onsite server management agreement
> hardware replacement costs .
> Hardware upgrade costs.
> status monitoring.
> general server management.


1) what else should be covered in the colocation details?

2) what should be included within the 'on site server management' agreement?

3) what should be included under the description 'general server management'.

for example: I think physical reboots should be part of the server management agreement, but how many on average per server per month should be included?

3) should hardware replacement cost be fixed rate per task or hourly, also do you have any suggestions regarding what to expect over a year (nothing exact, just a bit of guidance to help with the budgeting)

Combined these agreements should cover everything that we can not do remotely.