noiseless,
if you want to use capacitors in the feedback network, you will need to include switches also. Using switches, you can bias the gate of the input stage transistor.
You should read page 413 of Grey, Hurst, Lewis, and Meyer. There is a diagram there.
Here is another picture:
**broken link removed**
The idea is that during Phase 1, you bias the input gate to some voltage by closing a switch. Usually you try to bias both input gates to approximately the same voltage.
In phase 2, you move the charge that you sampled onto the input capacitor onto the feedback capacitor.
You should read this... a bit long, but very informative.
**broken link removed**
see diagrams on page 24.
good luck!