What sort of cold start mechanism does it have?

No not for a thou it's all for an 8 was just an example of what I use/pay for quality parts. They can be had cheaper than buying a kit with with lower quality JT sprockets.

I've always used the VXGB chain <£68
http://www.ebay.co.uk/itm/192027113848?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

and
Front sprocket<£18
http://www.ebay.co.uk/itm/361180081167?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Rear sprocket <£38
http://www.ebay.co.uk/itm/351915322021?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

I've never had a renthal sprocket wear (front or rear) to a point that it needs changing before the chain but if quite is that important to you then it's understandable why you'd do this. 
Never bought an OEM sprocket, aren't they about £40?


Lube every 100 miles, good grief, I'd have to stop on the way home every day to do that 

You will always get a million different answers to this question.
Fwiw the fact is that like tyres and brake pads you should always buy the best you can afford.
TBH most people should never have to replace a c&s set these days.
I personally buy individual parts a they can often be got cheaper that way. Search eBay for the size and length of chain you want rather than for your bike and also cross reference your sprockets with other bikes too, my fazer 8 used the fitment rear  sprocket and exactly the same front sprocket as my tdm (same brake pads too)
As for what brand you should buy, well, to some extent it depends on your use of the bike.
If you're a weekend warrior then an o ring chain and JT sprockets will be fine but I'd you do more regular riding them an x-ring chain with afam sprockets.
If you are a high mileage rider like me (25000 miles/year) I would suggest DID X-RING chain and renthal sprockets.
I get around 35000 miles from a set with a scottoiler.
Ultimately though I guess money is king here as none of them are cheap.

.

Had mine come on today when it hit 100 deg. Boy does it push some heat onto the back of your legs.

Well, I'm 45 this year and have been in the saddle without a break for 43 years so this is quite a lengthy list so here goes.


Italjet mini mini bambino        Italjet mini bambino             Italjet 50                        Italjet 80                           Yamaha yz 100               Yamaha yz 125


         


   Cagiva 125                             YZ 250                                      TY 80                              TY 175                                   Yz 490                          TY 50


         


         2 valve jawa x1                      4 Valve Jawa x1               Weslake x4                         Godden x4                       GM x4                      GT 185


         


       Montesa 350 trials               RG 250 Gamma                XJ 650 Turbo                  KLR 650 Tengai                   XT 600E                       XT 600 ZE Tenere


         


        CB 900 F                      XJ 600 Diversion                  XJ 900 Diversion                  TDM 900 x2                 And Now The FZ 8 Fazer


       


Addition Forgot to put the KX 125 between the YZ 100 and YZ 125





Think that just about covers it for now 

I always replace rear shocks with Nitron units. Makes a huge difference but like any handling mods once you start you have to do everything.
Shock shows up forks, forks show up brakes, brakes show up tyres and so it goes until eventually the new package shows up the rider.
So you end up getting some training at superbike school or the like and going on track days.
The end result is just like any other addict, you end up spending all your money on it and all you can think about is your next fix, if yo don't eat so much this month you could buy that slipper clutch you've had your eye on.
My advice would be to replace the shock (with a nitron) then get some professional help (pole dancer maybe) before it takes over your life.
Don't become an ADRENALIN JUNKIE