i am looking to buy a new amp soon, as my 50W combo has little chance of holding out in a gig and struggles through practices. i have looked at the laney rbh800 to go with the laney rbc410 (i want 300-400W with a 4 x 10") which will cost £560, but i want to know what other options i have. i'd rather keep the price below £600. i have looked at peavey, but these are too expensive(£760). can you recommend any other amps which i may not have looked at also, as far as second hand is concerned, other than looking in music shops, where should i look because ebay seems pretty limited.