If you have a home depot or lowes, go to the fencing section and look for bracings. You should find some small L-Brackets about 1" wide with multiple screw holes. I mounted my PS with those, they just so happened to line up exactly the stock screw holes in the PS and they are super strong. The worked great with the HDD's and the DVD drive.
You can see one of them to the left of the DVD drive, there are 2 holding up the PS on the left side of it.

There's are tons of FE's out there to choose from. Maximus Arcade, Mala, Hyperspin, GameEX etc. What you could do is use one of the FE's to bring up your Jukebox software and when done ESC out of it and then choose an arcade option. Once you choose your FE of preference the more you read on it the more you will figure out how to config it to do what you want. My cab is a jukebox/arcade, but i just have it go to my Itunes, and then use my sony PSP as a remote to control it. I can change the song, see my song list , change the volume, anywhere in the house. I'll eventually get an ipod touch to do the same but for now the PSP is doing just fine.
Hiding windows on Boot up start here........
http://wiki.arcadecontrols.com/wiki/Hiding_WindowsThen google a program called "instantsheller" or "BootXP"
The first will show you some tweeks the programs will help make it pretty for ya.
Also try this tutorial
http://rahulhackingarticles.wetpaint.com/page/Speed+up+Booting+Xp+by+61+TimesMy total bootup time is around 20 to 30 secs right now. Bios and all
Hope this helps