Basically, I have to redisign a site that had a large box set 800x600 static using tables.
The top and bottom corners were all curved, and the top and bottom edges ran inline with the two corresponding corners, (thus it lkooked like to bars, 1 at the top, 1 at the bottom, with the edges chamfered!).

Crv....Bar....Crv
........Hdr........
...Menu Bar.....
....Content......
Crv...bar.....Crv

No I have been asked to do this, but better, (the original coding was awful!), so I though CSS, make it liquid/expandable, generate minwidth properties....

So, I create a box,
put in a div for the top - float the 2 Crvs - set BgImg,
beneath is another Div for the Hdr,
Beneath this is another div, which contains a dive full of little menu div's,
2 Divs - set widths - floated R and L for the edges + the content div in the middle,
div for the bottom - float the 2 Crvs - set BgImg.

I thought it would be simple... yet as soon as you try anything remotley clever with css, you hit god knows what problems, and thats not inc. browser bugs! Just the odd way that things work and the order things need to be placed in etc..... I'm thinking of using tables for this, because CSS is just to flaming fiddly..... I can do similar stuff in tables in less than 20 minutes.... yet in CSS, it's taking days to get it to look and bahave correctly!