Hi
Could you please give me some details about the project, such as
1. what versions of centos and plesk do you have installed on your server ?
2. Why do you want precisely 1.7, when most of the people head for the lastest, which is 1.8.1? Do you have some template for it or why ? I mean, you're likely to want to upgrade very soon if you go with 1.7 now, and there are a lot of things/bugs fixed in 1.8.1 plus a bit of performance improvement ...
I'll also do some fine tuning of your server in regards to the php modules and mysql configuration and some extra security. What kind of dedicated machine/server do you have, is it a physical or a virtualized solution? What configuration does it have any how many domains do you plan to host there ?
Regards
Dragos