Final Year Project - Help!

Dear All,

Iam building a Data Acquisition system for my Final Year Project.
Can anyone provide me with a Check list of features that SHOULD be present in a Signal Conditioning Unit and also Data Acquisition System.

Links to any resources are welcome,

Some basic features required are:
1) Very good filter response : This is to avoid aliasing problem if you are going to digitize the analog signal.
2) Very High CMRR: This is to reduce noise in the circuit which is a common mode signal. Use instrumentation amplifier (as I mentioned in PM) if required.