Should I use FastCGI or SuPHP for my VPS?
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I have a VPS running Centos and a Cpanel installation.  2 GB RAM.

It currently runs Apache 1.3.42.  I could also use 2.0.64 or 2.2.22, should I upgrade?  

PHP (5.3) runs as SuPHP.

I'm wondering if I should stick with the current setup?  Or should I implement FastCGI and use a PHP opcode cache (APC, XCache, etc)? 	

I'd like to use an opcode cache if possible to speed up my page generation time, however I've read that running FastCGI on a VPS can increase the server load.

What are the security implications of SuPHP versus FastCGI?