JQuery - Multiple versions

Hi,

CQ5.4 uses jQuery version 1.4.4, and the latest version available is 1.7.2. For some reasons we would like to use 1.7.2 version of the jQuery, but its clashing with the OOB jQuery version.

I would like to know:

• How do we use jQuery latest pack with CQ5 (noConflict)
  
• Will there be an impact in the author / publish instance if 1.4.4 is replaced with 1.7.2?
• Some of the CQ5 libraries are dependent on OOB jQuery (1.4.4) so in such cases how can I work with both the versions without any conflict?
  

Thanks,

Chetanya