Norton 2005 and earlier editions can only take advantage of weekly update and manual download of daily updates using Intelligent Updater.

Norton 2006 and 2007 can enjoy the daily updates via LiveUpdate. It is called LiveUpdate daily.

More info at http://service1.symantec.com/SUPPORT/sharedtech.nsf/docid/2002021908382713?OpenDocument&src=sec_web_nam

Avast, McAfee, Norton 2006 & Norton 2007 has daily updates.

"Which one would be the better solution?"
Does Norton has active subscription?
IMHO, if user want Norton and paid for it and has no problem running it, I'll leave it alone.
Otherwise, suggest another solution.