Had the same dilemma and wast prepared to take the risk on second hand gear
Had a fairly modest budget of £300-£400 for a head and cab
Also needed it to be a fairly portable as I load my gear on a sack truck and walk the 5 minute journey to rehearsals and back
So went with
TC electronics BH250 head
http://www.thomann.de/gb/tc_electronic_bh250.htmAnd
Kustom Deep End 2x10 cab
http://www.thomann.de/gb/kustom_deep_end_210h.htmVery happy with both and have the piece of mind that if they go up in smoke they are under warranty
But knowing my luck they will both blow up on day 365+1