I reckon 60 quid plus VAt is about as good as you will get. I used to send a lot of pallets and was paying £42+VAT but that was on an account and we were pumping a fair few through each day.
We only move small parcels like business post, and I recommend my clients to use Europa - tel 0208 311 5000 who have low pallet rates I think about £60.00.
we use either Pallex or Pallitz but like above, send about 50 a week. The cheapest we pay is about £30 for upto a tonne, the most is about £90 which is North Scotland.