fine for partial boils like brew dude said.
for full boils...1 gallon of clearance isn't enough...as you actually need 6-7 gallons of wort initially, which boils down to the 5-5.25gal you'll put into the primary.
Primary: English Mild
On tap: Pale Ale, Lancelot's Wheat, English Brown Ale, Steam Beer, HoovNuts IPA
Bottled: MOAM, Braggot, Raspberry Melomel, Merlot, Apfelwein, Pyment, Sweet mead, Cabernet
Gal in 2009: 27, Gal in 2010: 34, Gal in 2011: 13, Gal in 2012: 10