After my initial testing of the Wilko pressure barrel has been positive and I see no reason to move away from that where it suits the type of ale etc. Saying that, i'm now also starting to look ahead to the metal barrels where I want something more pressure resistant for full carbonation etc. I'm not necessarily referring to the corny kegs that many rave about as such but more any metal type of barrel that holds pressure. So for the home brewer, is there any reason to use something like a corny keg that most home brew companies sell over sourcing a used or new pub beer cask?. Are the corny kegs more popular more down to their slimmer build over a traditional pub beer cask (therefore use less space) or are there other reasons such as available fittings etc?. Ideally I'm looking at a 2 keg setup with proper beer pumps (on a home made bar) as ex pub pumps can be bought quite cheap by the looks of things. So what do other members use cask wise?.