I haven't been on the forums much lately, i just found your thread. First of all, i'm flattered that you want to replicate my cabinet, i'll try to help out in any way that i can.
a router is not necessary for mounting joysticks, but if you are using 3/4" wood, you may find that the joystick seems a bit short if you don't route out from below. my suggestion is take a scrap and mount your stick and see how it feels.
that being said, a router is the most useful tool you can have for building a cabinet. Not only can you use it to recess areas in the wood, but also for cutting the slot for tmolding and cutting plexiglass. you can pick up a cheap trim router at harbor freight for around $30.
http://www.harborfreight.com/14-in-24-amp-trim-router-61626.htmli did borrow a larger router from a friend for doing some of the routing on my 4 player cabinet, but the trim router is more than sufficient, and easier to use for certain things ( button holes)
as for trackballs, the ultimarc utrak easily mounts in a 3/4" panel without routing or a mounting plate, which is a huge plus, however the groovy game gear electric ice-t just feels better, in my opinion. it is a little more work, you need a mounting plate and a router to make it fit like i did, but it just has a smoother feel to it than the ultimarc unit. as for the illumination, they both look great. if you just want a single color, you can connect the LED directly to the red and black wires of your PC power supply. I have the ultimarc trackball in my upright cabinet and the GGG trackball in my pedestal, both of which are connected to an optiwiz controller from GroovyGameGear. the current version of the optiwiz has a set of 5v and ground pins on it that you can use to wire up your LEDS. this won't help if you want them to change colors , but for a single color it works just fine.
for wiring, i say get a spool of wire and a pack of crimp on connectors and make your own. that is the best way to make sure they are all exactly the length you need them to be. if you are going to crimp your own, make sure you get a set of ratcheting crimpers, your hand will thank you. i was on my 4th or 5th panel before i bought a set and i could kick myself for not doing it sooner. my 4 player pedestal has 31 buttons, which is 62 crimps...that can be tough on your hands if you are using crappy crimpers. i bought mine at harbor freight for $15....and they were well worth it.
http://www.harborfreight.com/ratcheting-crimping-tool-97420.htmli learned many things over the years building multiple cabinets and looking at the amazing examples on this forum. here are the things i've learned:
1. you need a router, they cut plexiglass like a hot knife through butter
2. t-molding makes a world of difference, don't skip it
3. use t-nuts to mount joysticks with no visible bolts
4. control panel artwork is worth the cost