I just traded in my peavey combo for a gk 1001 rb mk 2. I now need a cab, I was thinking of getting a 210 first just for jamming with friends and what not. I do play in a big band though so I would be worried about volume at rehearsals same with the rock and metal stuff I play in. I do also play a 5 string so I need low end extension. In other words what cab should I buy for around 600 cad?
 
Used 410, or two 210's vertically stacked. However, it is tough to get two cabinets for $600 used, but it can be done if you search for a deal. Get an 8ohm cab if you intend to add another identical one to it.

You are on the right track with thinking a 210 might not cut it in all situations. Always better to have too much than not enough!
 
Used 410, or two 210's vertically stacked. However, it is tough to get two cabinets for $600 used, but it can be done if you search for a deal. Get an 8ohm cab if you intend to add another identical one to it.

You are on the right track with thinking a 210 might not cut it in all situations. Always better to have too much than not enough!
All this. :)