These have been very hard to get recently but eBuyer have some in stock today at a sensible price. (Others have them available for approx. £200 delivered)
*** This is the retail package which includes a 2.5" to 3.5" adapter. ***
Free delivery within 5 working days.
From eBuyer :-
Intel high performance Solid-State Drives (Intel SSDs) are designed to deliver outstanding performance and reliability. With no moving parts, Intel SSDs offer a quiet storage solution that responds quickly and uses less power. Compared to traditional hard disk drives, Intel SSDs are significantly more responsive, much more reliable, have lower power consumption and are completely quiet.
Intel SSDs are designed and validated specifically for PC applications using Intel's deep knowledge and understanding of PC design.