When I say size I\'m talking about bytes not pixels.
I\'m curious if there is any consensus on what the maximum size should be for various categories. Specifically
Your 'maximum' size really depends on a lot.
Your audience:
Your content
The functionality
For any site though, keep your page as small as possible. Good design is about taking things away until you're left with what you need. The base HTML should be a few kb, the CSS a few kb, and if you're loading scripts and images load them last.
With a smaller page, your site loads faster, which means your users feel more engaged and your page gets indexed better.
Response times for users: http://www.useit.com/alertbox/response-times.html
Response times for google: http://googlewebmastercentral.blogspot.com/2010/04/using-site-speed-in-web-search-ranking.html