Jia,
I don`t know if this is even possible in your world or industry but recently I have been using gotomeeting.com. I have been able to do EVERYTHING that I have been able to do via web and phone from this service. I love it. You`d swear that I worked for them.
I still get clients that need an appreciate a face to face when I am not local to them and that is okay but having this service as my first option have been very successful in cutting down travel. Even when meeting with a new prospect or lead in town, sometimes its more feasable to set up the meeting through there and accomplish both my goals and my clients.
It`s up to you to gauge which clients it works well with and which it doesn`t. Afterall, the downside if that some clients may feel like their account is not valuable to them if your not willing to invest in the travel. Catch 22!!!
Good Luck!