It depends on the type of sound you're looking for. Most people would say that you're going about this backwards, and should choose the speaker first, then an amp that mates well with it.
That said, the best pairing i've heard with the 302b is the Totem Arro, which is well within your budget. Other options include GMA Europas (disclaimer: I'm selling mine soon) and any Coincident speaker you can find in your price range.
A lot of it depends on your room and listening preferences, but since you have a sub I would say the Arro's are a great choice.
Michael
That said, the best pairing i've heard with the 302b is the Totem Arro, which is well within your budget. Other options include GMA Europas (disclaimer: I'm selling mine soon) and any Coincident speaker you can find in your price range.
A lot of it depends on your room and listening preferences, but since you have a sub I would say the Arro's are a great choice.
Michael