CREATE TABLE table_55108 ("Team" TEXT, "City/Area" TEXT, "Arena" TEXT, "Capacity" TEXT, "Last season" TEXT)

Which arena has the Milton Keynes Lions and a capacity of 800?
SELECT "Arena" FROM table_55108 WHERE "Capacity" = '800' AND "Team" = 'milton keynes lions'
SELECT "Arena" FROM "table_55108" WHERE "Capacity" = '800' AND "Team" = 'milton keynes lions'