Shahid...
Be a bit careful, research this well...you have to have a tranny that is ' modular' you will have to buy your module in the U.K + whatever crystal you opt for. The U.S guys are not allowed to sell you a module thats not legal for use in thier country ...so you have to find some one who will sell you the tranny (thier recievers are of no use whatsoever in this country) minus the module, then you have shipping... then customs will whango you for import duty + VAT ,as a rough guide , say 20% then if Parcel Force get involved , not that you have asked them to, but they do, believe me ! that could cost you another £8.00...Inwood..? Dave