Recently picked up a used (as new) Jag classic 500 amp and nothing not to like about it. A great sounding amp, silly weight for a vintage/tube look amp. The quoted 500 watts is enough for general gigging use.
I would advise to stay clear of their previous line, formerly Tech Soundsystem amps (non class D) as these were prone to various reliability issues I understand.
Regarding cabs, they changed drivers a couple of times but depending on taste they are up there with the best in lightweight construction. Also the Tech SS line of Neo cabs may be worth checking out if you see used.