Take a look at available software for email as well as complete interactive customer support solutions

Email handling software:
Kana products http://www.kana.com/products/index.html
Mustang Software Inc. http://www.mustang.com/
RSVP Mail processor http://www.chimerasoft.com/rsvp/

How does interactive customer support work?
Look at Reach out Enterprise's remote control software http://www.stac.com/cwro/

Try live help for yourself and find out exactly what kind of customer support experience you could offer to your own customers.

Here are some sites that feature live help
1-800flowers - eShare Technologies
mammoth golf - Face Time Communications
9netavenue - LivePerson
Acuity
eGain

Calcule your ROI
If you are concerned about sales and winning new customers, sate-of-the-art software and support could help your company become more successful. Assess what kind of Return On Investment Internet customer support software could yield.

The following sites offer ROI calculators:
eGain
eShare Technologies
Acuity