basically my site is selling radiators, and i want to be able to give the user extra options for the product they want to but, so when the user is on a product they want to buy, i want to have a feature where they can choose what valves and accessories they want them and then add the extra cost on top of the product

is this possable

here are the different option

Valves:-
http://www.bargaintowelrails.co.uk/i...ex&cPath=27_35

Accessories
http://www.bargaintowelrails.co.uk/i...ex&cPath=28_32