Good idea, will be useful i'm sure.
I'll start the ball rolling shall i? although i'm showing what can be done without spending half a months wages on luggage!
XTZ production year: 2008
Make and model of luggage frame: Touratech for XTR modified to fit Z
Make, model and size of side cases: 35L x2 custom fabricated, mounted with TT mounting kit, lined with neoprene foam, 100% watertight.
Make and model of topcase rack: My own
Make, model and size of topcase: None
Country of purchase: UK
Date/Price of purchase (by elements, including VAT, in local currency):panniers - approx �35 each, pannier rack - �180 in 2007, mounting kit - �45 in 2007, topcase rack - �not sure yet.
Pros: everything i want/need for a fraction of the cost of branded stuff
Cons: panniers are slightly heavy
Comments:


here's the panniers on my old 'R', i don't have any pics of them on the Z

and finally my new top rack 

hope this info is of some use.
Pete.