name='Marci' said:No sweat. More or less all hardware is available in 3/8" or 1/2" variants... all the topend stuff takes 1/4" threaded fittings... and you can get more or less every possible fitting in that size to support whatever size hose you want. eg: Swiftech blocks come with both 1/2" and 3/8" fittings in the box...
Cheers man that's the first comment I've gotten so far that has been useful and not told me to scrap the lot.