new fuel pump - they cost 4 or 5 times more than the vectra b fuel pump, you can get aftermarket fuel pump for 200 quid new or get 2nd hand off ebay but beware as they fail
i would ring up vxhall customer services about the pump if your car is a few years old as they had a recall on this
the injectors they do as a precaution but 2nd hand off ebay or send yours off for recon and testing for around 30 or 40 then u know they aint fubar
front discs and pads are 30 quid off ebay
springs are about 70 quid new if u want lowered [tuning.co.uk], they might be cracked
rear upper suspension bushes go on most vectra's and people live with the noise, never had a MOT failure as a result
the work apart from rear bushes is relativity easy to do, get a haynes manual and do it yourself