Well, I've been very excited to get my lab setup (or at least beginning setting it up)(I don't rush, things get screwed up that way) but nothing is going right...
Here's my complications:
I have the new (used) boxx servers with this configuration:
CPU: 2 x Dual Core Xeon 3.04 ghz
Memory: 2 Machines have 4 gigs - 2 Machines have 8 gigs
Hardrives: 2 X 72 Gigs (RAID 5)
Minor notes: Dual gigabit adpaters, no remote management, cd-rom, ect...
Well, after the advice I received here. I decided to go with ESXi on two of the machines, but guess what?... Not Compatible. Go figure.
Here's my current setup:

WHAT THE HELL DO I DO NOW?
Problem 1:
I know one box will be Ubuntu 10.10 as my primary OS, however how should I configure the other boxes? I'm a little lost on where to go now, because I'm signing up the elearnsecurity cert classes as soon I get my network configured, hopefully sooner than later.
Problem 2:
Another problem. I planned on my DD-WRT Linksys router to provide a wireless internet connection bridged with my homes wireless, however it's not even close to working and I've deployed 20+ of these and this one is an anomaly. Can anyone suggest a more reliable wireless interface that can provide bridged access to my router?
Problem 3:
Another issue is space. I was lucky enough to have a supportive wife to build a 640 sqft man cave. So, I've allocated a section of the room for the equipment that won't kill the room's purpose. Next to the MAME cabinet is where the desk and hopefully all the equipment will reside. I don't want it to look cluttered (that space is alot bigger than the picture 7ft from wall to MAME cabinet).

So, does anyone have any techniques they've used to consolidate space for equipment?
PLEASE HELP. I'm ready to start elearning and backtrack courses.