Going to Houston with VS/DL via a leisurely stop?

Right folks, a bit of a brain-teaser for those who are looking for a bit of a puzzle.
I would appreciate some itinerary ideas
Around May time next year, I will have a business trip coming up to Houston for a week (Will need to be there for Mon-Fri). Now I would quiet like to fly with VS (and with DL), so understand that I'd need to change somewhere on the way. I'd like to fly out the Friday pm before, and spend a short weekend break somewhere, before continuing my trip to IAH.
I did this last year and stopped in NYC for almost 48 hours, and it was brill. I'm happy to do that again this year, but as I already have a NYC break booked for 2015 around Easter, preferably somewhere else would be better.
So I thought I'd reach out to the well-travelled lot out here, and ask for some ideas as to where (on the VS route) might be good for a short hop? My current thinking is Boston or DC, but of course neither of these is a DL hub, so to get to Houston I'd need to go indirect again. Although I would appreciate the TPs from that, I don't want it to eat into too much of my time at the first leisurely destination.
What's Atlanta like? Would you recommend it for a single traveller without a car?
The other thing is that the total cost of flights in Y will need to be no more than it would cost to go direct. Having done a few dummy searches, flying direct with BA would cost around £800 so something around that mark would be fine.
Any ideas would be much appreciated!
I would appreciate some itinerary ideas

Around May time next year, I will have a business trip coming up to Houston for a week (Will need to be there for Mon-Fri). Now I would quiet like to fly with VS (and with DL), so understand that I'd need to change somewhere on the way. I'd like to fly out the Friday pm before, and spend a short weekend break somewhere, before continuing my trip to IAH.
I did this last year and stopped in NYC for almost 48 hours, and it was brill. I'm happy to do that again this year, but as I already have a NYC break booked for 2015 around Easter, preferably somewhere else would be better.
So I thought I'd reach out to the well-travelled lot out here, and ask for some ideas as to where (on the VS route) might be good for a short hop? My current thinking is Boston or DC, but of course neither of these is a DL hub, so to get to Houston I'd need to go indirect again. Although I would appreciate the TPs from that, I don't want it to eat into too much of my time at the first leisurely destination.
What's Atlanta like? Would you recommend it for a single traveller without a car?
The other thing is that the total cost of flights in Y will need to be no more than it would cost to go direct. Having done a few dummy searches, flying direct with BA would cost around £800 so something around that mark would be fine.
Any ideas would be much appreciated!
