Web develeopement

Hi guys,

I am about to develope a web application which will have many hits per
sec.

Decided to use linux , ruby , ajax and DB2 express edtion .

I need to implement a distributed environment which is scalable i. SOA
based .

Is my choice for RUBY correct i…e can i develope services in ruby ?

what webserver can i use ?

Take into consideration i am new to ruby . I am a .net developer but
wanted to imnplement my web in open source s/w .

thx in advnace