I am starting a website and I found a reputable web host. However- if my website is Linux based using perl or php I will receive unlimited bandwith and disk space. But if my website is Windows based using ASP.net I am limited to a certain amount. Why is that?

I am creating a website but I am unsure on whether to build a windows based website using ASP.net or a linux based website using Perl or PHP. This is my first website. I know both asp.net-perl and php. What factors should I consider in making a decision and why?

1) http://uk.cricinfo.com/db/PICTURES/DB/042004/052003.player.jpg
2) http://pictopia.com/perl/get_image?provider_id=278&size=550x550_mb&ptp_photo_id=1054037
3) http://farm3.static.flickr.com/2314/1677774833_0742de07f3.jpg?v=0 (batsman)
4) http://pictopia.com/perl/get_image?provider_id=278&size=550x550_mb&ptp_photo_id=2829366
5) http://cache.viewimages.com/xc/2630175.jpg?v=1&c=ViewImages&k=2&d=B43C13524355E9287318126C92AE0036A55A1E4F32AD3138

As always: who are they and whats the connection?
No 4 is the batsman as well

(Paid Help;)
i need to post my script and explain what i want- how do i do that here?

Does anyone know of a patch for Perl that will make it *always* act as though "use strict" was on- regardless of whether or not the script contains such a declaration?