Some basic newbie questions

Hi,

I've asked to evaluate OpenManager and I have a couple of basic questions. 

1. What I've asked to do is to create a VMWare instance running CentOS.  Is that viable is does the server have to be a Dell PowerEdge server?  Also, can a virtual CentOS server host the tool?
2. We have mostly Dell servers in our colo's and at customer sites, but we are not exclusively Dell?  Is it possible to use OpenManager against on Dell hardware?
3. Is there a client component that needs to be installed on the remote systems?  If so, can the client OS be CentOS?

Thanks,
Rob Tanner
Peak Hosting