hello,
You need to look at it more like this. Say each page on your site is 50k and your dsl line can serve 512 download and 256 upload. So you need to look at it in terms of download and upload speeds because a pIII has more then enough power to serve a DSL line.
If you do something like 5 times 50k (5 pages / sec at 50k in size) you are looking at about 250k/s upload. Your DSL connection can serve five 50k pages a second.
If you do something like (60 seconds 60 minutes 24 hours) = 86400 seconds. Now if your server can serve fine pages a second you are looking at 432,000 pages / day.
You need to look at the total footprint of your pages though say that you have 50k in images per page now you are down to 2 pages / sec.
hope this helps,
- justin