Countdown to Xenon/Angel Install- Final Q's!

[Mindfull]

Good Afternoon everyone!
I'm ticking down to my Xenon/Angel install, and want to make sure I'm not missing anything. I'd appreciate any insights & details more than you know- As a good friend of mine always says: "Others have lived before you!"

So I've purchased the following (prices incl for reference):

• 2002 X5 3.0i with Sport pkg, but no Xenons (yet!)
• NEW OEM Pre-03 Xenon Headlight units w/bulbs ($500- WooWoo!)
• Aftermarket Xenon Ballasts which should arrive by the weekend ($79x2)
• JLevi's Angel Eyes, which arrived w/in 48 hrs of clicking through their site!! ($190)
• Standard tools from my kit, plus a Dremel Multi for clearing the ambers
• Stealth Turn Signal bulbs ($?Don't recall)

Provided the ballasts come in, I'll be tackling this within the week.
A few remaining questions (I'd LOVE to avoid hitting a roadblock & posting HEEELLLP! like many others!):

1. Several posts searched mention needing either a homemade Relay or pulling a fuse to avoid a Halogen Bulb missing-error. Though I've worked with 1/2 the power tools known to man & built houses, I don't solder or build relays, soooo...
2. Is there any problem in pulling the halogen-error fuse in an X5. Any loss of functions/warnings re: headlights?
3. One thread mentioned that the dealer can reprogram the ECU for Xenons for $30-50. Is this in addition to relay or fuse-pull... or does it address the same issue? NE1?
4. Which wire to connect the Angels to? I'd like to avoid digging into the 'black box' if possible and esp if I do pull that fuse, to make sure I'm tapping into the right wire(s). I'll dig into the WSD, but if NE1 can say "tap the ____-color wire", I'll name my next child after you (LOL- I've already had my kids for this life, but I'll appreciate it!)
5. Clearing ambers & waffles- Specific part to take out- the side-oranges are easy to locate, but will I need any other lenses/ projectors on hand? Pics of the surgery?

Can't wait to get it done- just want it done right. TIA!
M