Awww, thanks for the comments.

The glass originally was more transparent - and darker. It however turned out that I had yet again forgotten that some Photoshop layer blend modes don't really translate to transparent .pngs (as they use data from the underlying layers to calculate the effect, and you can't do that in a browser), so I had to ditch that idea and without the gradient overlay set to... well 'overlay'-mode, it was too transparent for my taste - I guess I wanted something to show for so expensive file; that overlay eats ~400KB each time it gets loaded. So, a big no-no in regular use, but I don't plan to have that many visitors, besides I has no bandwidth cap on my host.

This is meant to be blatantly artsy fartsy site, and users can upgrade their connection, if it's not fast enough for them, for all I care.

That doesn't mean that I wouldn't optimize it - quite the contrary - I just won't be shedding any tears if it turns out to be considerably heavier than your average website.
For that matter, the background was more of grey/silverish/blueish, so it has already once changed color scheme during the desing. The original background image proved to be quite unsuitable for tiling, although quite pretty.
I'm akshually going for a slightly dirty glass, and having a some kind of imaginary light source shining on it, the metal background should be bit lighter in the same place the glass is lighter (and less transparent).
Anyway, I did a small experiment.
Site a.
Site b.
Look pretty much the same, right? They were meant to look identical, but after a small mishap in Fireworks, they are teeny weeny bit different looking - it's not intentional.
Site b is actually 10% lighter in filesize than Site a, yet it loads 20% slower. Care to guess why?

It's because Site b makes 27 requests to the webserver, saturating the maximum allowed simultaneous connections, while Site a only makes 4 connections. In other words, Site b builds the broken glass overlay of several smaller images (which to my great surprised actually compressed better than one large - I expected it to be other way around, due to overhead and stuff), while Site a uses single image, and each div just show a small part of it. It's Intertubes magic!

Anyways, considering that you all seem so
terribly interested, I probably better stop typing and go back to tweaking. Next up; some fancy JS.
