They do look great, and I will probably go this route as soon as I get done with 2 other projects:

1. Cooling system overhaul / refresh (see my new post asking for some recc's)
2. Transmission service (finally found an independent master BMW mechanic with 20 yrs of factory BMW experience who actually knew exactly how to do the procedure - all other indie places sounded either confused or doubtful)

at 73K miles I don't know how critical either project is, BUT i know i would have more peace of mind if I did them first, and THEN i will get onto the more minor / cosmetic upgrades.