Hehe..... thanx boys. Richard you had me woried there - saw you lurking just after I posted this and thought "any minute"...... then ya let me down, but not for long!! As an ex Clanky I can relate to all the water pump theory and so I guess I shoulda told you what size hose and length and diameter etc so you could work out the frictional losses....... Happens it's only a low spec AMD setup with little in the way of fancy doodles so I suspect it ain't worth me going SATA in the long run.
Have my eye on a 7200RPM with 8 Meg cache as an option so will go for that after all.
Many thanx again guys and y'all have a very Merry Xmas and a Happy New Year.
