www.parcel2go.com state £6.49+VAT for 1-3 day delivery with £50 compensation cover. Lower prices if sending more than three parcels, which isn't relevant to many people.
£ 50 cover if it's a rubber ball

I particularly like the inclusion of various on the list, PS3 sorry that's not covered, it's either fragile, delicate, or various
The following items (or any item similar in description or content) can only be carried on a no compensation basis on any service.
Any person sending such an item does so at their own risk:
Added 1/1/2007:
* Amber (Added 17/1/2009)
* Antique
* beswick figures
* Bottle
* bottles
* Bulbs
* Camera
* Car Door
* Car Panel
* Ceramic
* Ceramics
* chandelier
* China
* chocolate
* Clock
* Computer Monitor
* Concrete
* confectionary
* Crockery
* Crystal
* Delicate items (all)
* detergent
* Diamonds (Added 17/1/2009)
* Dinner service
* Dinner Set
* dinner/tea set
* Documents
* fibreglass
* Figurine
* Fishing Rods
* fish tank
* Food
* Fragile items (all)
* Framed painting
* Framed Photograph
* Gems or gemstones (Added 17/1/2009)
* Glass
* Glassware
* Gold (Added 17/1/2009)
* Guitar (that are not sent in a hard case)
* Hamper
* Headlight
* Jewellery
* lamp
* lenses
* Lighting
* Lights
* Marble (or stone derivatives) (Added 17/1/2009)
* Microscope
* Microwave
* Mirror
* Monitor
* Negotiable documents (Added 17/1/2009)
* Ornament
* Over head projector
* paint
* paints
* Pewter figures
* Picture
* Picture frames
* Plates
* Porcelain
* Pot
* Pottery
* Precious metals (Added 17/1/2009)
* Precious stones (Added 17/1/2009)
* Projector
* Real fur (Added 17/1/2009)
* Resin
* Scanner
* Shower screen
* Silver (Added 17/1/2009)
* SIM cards (Added 17/1/2009)
* slush syrup
* Spectacles
* syrup
* tail lights
* Tea set
* Telescope
* Television or computer monitor
* tickets
* tiles
* Torches
* various
* Vase
* velux
* Watch
* window
* Window frame