Anyone know Boston and where to go shopping.

I'll be there for a meeting the week after next and have a Sunday and a Tuesday night free to sightsee and spend money on unnecessary electronic nick-nacks. I don't know where I'll be staying, but the meeting is at the Hynes Convention Center, so I should be near by.

I need to buy:

- compact digital camera (Canon IXUS or similar)
- 1 TB USB/firewire/net external hard drive

Internet shopping isn't possible. so I just need a store or two that should have reasonable prices and a good choice.