HI
With Radiosity in 10 Minutes 
http://home.arcor.de/matthiasth/lanraum.jpg
Without radiosity
http://home.arcor.de/matthiasth/lanroom2.jpg
This is an older Pic, that I never posted. I don t like it. I made in the last 10 Minutes a bit Radiosity. Now i won´t work any longer with that (Finish Projects).
This is the room, where we make most of our Lans
i actually like the 2nd pic better.
You could try to texture the 2-nd pic.
That would make it even better…
Yeah, i could do that, but i´m going to make a new pic better.
CU
Using Radiosity (like in your original picture) usually turns out better results as far as buildings and rooms. I’d encourage you to use radiosity with a large # of hemires and then texture it. Good luck!
I liked the second pic too.
LAN PARTIES ALL THE WAY
Pooba
2nd pic needs shadow buffer size increased.