architecture n-tiers & PHP

hello i want to develop an intranetbur before i must choice the adequet architectrure for this. i know that there is different architecture like DNA(Microsoft),Websphere(IBM)... perhaps i'll use DNA but i don't know the best of using: 1-MTS(Microsoft Transactionnnel Server), IIS(web Server)& ASP, Informaix (Unix) 2-MTS, IIS & ASP, Oracle(Win NT) 3-MTS,Apache &PHP,Informix(Unix) 4-MTS,Apache & PHP, Oracle(Win NT). i'm waiting for your suggestion ... thanx in advance __________________________________________________ Do You Yahoo!? Get Yahoo! Mail - Free email you can access from anywhere! http://mail.yahoo.com/