ie:

3 Linux database servers serving 10TB of online Web traffic
6 ADS controller, must be on 2 physically separate computers
Exchange server serving X amount of people. Must connect to web front end proxy server via X interface to DMZ, requiring X number of network connections to the virtual server hardware.
SQL server serving X amount of X type queries.
3 Oracle Instances, 2 on-line, active, serving X (blah, blah).

After you are done with that, give me per instance uptime and availability requirements.

If you have specific machines you are migrating from, give exact current configuration and "happiness level" of user community.

In the case of any heavy IO machine, make sure you state the type of activity.

If you have clustering code that splits work between machines, let me know.

If you have certain DMZ requirements, state them.

Ok, this goes on and on. Don't post, email me, it gets sensitive when you work through infrastructure.

I'll check out the list, see if it fits in with my knowledge, and give a response.