Do you have the option of working from home Fitzy or will you face a massive commute every day again with this new job? The only sales people that are travelling and visiting with prospects all day every day are either busy idiots (think the car sales cliche) or people doing a high volume but small value transactional orders.
The guys who do the biggest deals generally have the smallest number of clients or prospects (5 or 6 max). Assuming you are selling complex solutions or services and not mickey mouse stuff, a large volume of the work is often not client facing - it is liaising with all your internal people in advance of some big customer facing milestones. Plenty of that work (not all) can be done and organised from your home office via conference calls, webex's etc.
Spending hours every day commuting to and from a company office is dead time for somebody taking on budget pressure and a well run company will know that in this day and age. Not saying you shouldn't be travelling plenty - just box clever when you can. Time is valuable brother (for work but most importantly for your personal life).