vidmarc:
Thanks for the feedback. Can you let me know why you think WorldPay can be problematic? I was recommended them by another UK based DVD retailer.
Is that retailer using zencart? If so, what VERSION of zencart?
The current module for Worldpay is stated as compatible with ZC version 1.3.9. if you want a "re-vamp" then I would say it is essential that an upgrade to 1.5.1 is part of that activity.
The current Worldpay module may not be compatible.
Wordpay frequently alters their callback systems - not a problem in itself, but when they do this, it will require modifications to your installation. Whether there is someone around to do this for you is unclear. The author of the current module is Phil Clarke - so maybe contact him.
vidmarc:
I'm looking for somebody to look at the site and tell me how it can be improved both stylistically and technically.
If you have had the site for "several years" my first question is - WHAT VERSION of zencart is being used? If it is an old version, then you could be in a precarious situation. Versions prioir to 1.3.9x are vulnerable to serious hacking...
So before you even think of cosmetic changes (the "nice to have" features) think of the "need to have" ones first.
Upgrading can be straight-forward - or extremely complex - it will depend on the level of customisation.
The only way to establish where (on a scale of costs) your project lies is for a full audit to be done on the site - and this in itself takes time and requires some level of skill and knowledge.