and want the pageheader fixed on top with the pagefooter fixed at the bottom and the pagecontents scrolling (not going under/over the page header/footer ?

That said though, I think that’s a pretty solid list of plugins. Here are some tools (or “services”, rather) you might want to add though:

SafariTest
Browsershots

HTML:

<h1><a href="http://url.to.site/"><img src="your-logo.image" alt="site title" /></h1>

CSS:
h1 img a { border:0; }

1) code level - eg. while(list($sKey,$mValue) = each($aArray)) { } instead of foreach($aArray as $sKey => $mValue) is a faster way of iterating thru large 2d arrays as foreach creates a copy of the array in mem before iteration! In php5 you can foreach by ref. Also, use language constructs such as over functions eg. isset() vs is_null()

*** isset() is faster as its a language construct

2) architecture - are u a script kiddie OR an engineer? How your app processes requests and returns responses greatly affects overall performance. See PHP Architect’s Guide to Design Patterns

3) Hare and the Tortoise - does ur server-side script gradually grind to a halt as u serve more and more requests? Think scalable.

4) …. i could ramble on but i’ll shutup 4 now