Thing is Tunnie, my car has done nealy a thousand miles since I picked it up, so four services in three years simply won't cut it...
In my case it's £1776 for 24 litres of oil (60-300, depending on oil used), four oil filters (20), one air filter (20), one pollen filter (15), four sump plug washers (2), one fuel filter (10), a litre of brake fluid (15-25), 10 litres of 50/50 coolant (25) and four service printouts. Oh and one MoT (45) 
Say £462 in parts, the rest in labour and 'free' coffee...
Like I said, not sure if that's good value or not 
get a local independent to do it, wont invalidate warranty as long as its done to dealer spec.
Leaning towards that as a plan

get them to do the services as the car decides it needs them, and deal with anything else as it crops up depending whether a computer is involved or not...
Front discs/pads cropped up at the taxi inspection, parts costing a smidgen more than Vauxhall, so that will be a driveway job as an example
