Treated myself to another drying cloth - am impressed with it - can dry the car in one go without wringing it out. - They have gone up to £5.49 now though.
http://pic20.picturetrail.com/VOL1214/6530450/12619358/413458776.jpg
I got one of these recently too. Pretty impressed with it myself, does a great job.
Getting a fiesta ST (year old) with the part leather recaro seats, what's best to clean the leather on these and the cloth for that matter? Also I used dragons breath on my alloys, I assume this won't cause any damage to new alloys as I want to try and keep on top of them this time around!
Gliptone do some of the 'best' affordable leather cleaner/conditioners, though tbh leather shouldnt really ever need more than a feed once a year unless you're really tracking tonnes of dirt over it. Cloth, just grab an APC or dedicated interior cleaner (I have gotten great results out of Halfords own brand, surprisingly) and some MF clothes. Your assumption regarding dragons breath is correct, but you should look into sealing your wheels, then they shouldn't need more than soapy (not dish soap, obviously!) water to clean during maintenance washes. FK1000P is a good option for this, but there are also some pretty nifty spray sealants around, or you can ceramic coat them if you want the best and don't mind paying a premium.
DA is for a paint correction, really. It takes 7 hours as you're doing multiple passes, cleans and actively removing damage from the car. With hand polishing, generally you're only looking to apply a glaze or polish to 'fill' the surface damage, so naturally takes far less time.