http://news.bbc.co.uk/1/hi/technology/8557144.stm

Interesting link.

Western Digital already have these "Advanced Format" drives on the market, running with 64MB Cache. Price wise the 2TB edition (Model Number : WD20EARS)  is currently on scan.co.uk @ £152

With XP in the "Extended Support" phase of it lifespan, M$ is unlikly to release any proper fix for the issues raised so it will be up to the HDD manufactures to supply a utility to sort thing out.

Dunno about the cache but I'm lining up to buy one of these:

http://www.aria.co.uk/SuperSpecials/Other+products/Seagate+Barracuda+ST32000542AS+2TB+3.5%22+SATA+II+Hard+Drive+-+OEM+?productId=39394

2 TB drive for £102.21 incl VAT