I'm going to receive a Xeon Server/Workstation soon and I was thinking about installing ESXi to host some server applications that I want (ex: SVN server, Web server, media server, etc). Most of these will be headless VM's.

My question is: on top of all these headless VM's, is it possible for ESXi to have another VM that would be non-headless (so that it will output video through the VGA/DVI port)? Or are all VM's within ESXi only accessible through remote connections?

I'll be using this non-headless VM like a regular workstation: browsing, development, media, gaming maybe.

The other alternative I was thinking about is to install a very lightweight operating system and have the headless VM's running in Virtualbox.

If it is possible to have have a non-headless VM, what would be the performance compared to a regular workstation? Noticeable or not when gaming?