Searching SQL SERVER

Hi

Iam working on a portal where there is a search option. Here, we wanted to search four tables where each table is having three columns as below:
Table1(col1 ntext,col2 varchar,col3 ntext)
Table2(col1 ntext,col2 varchar,col3 ntext)
Table3(col1 ntext,col2 varchar,col3 ntext)
Table4(col1 ntext,col2 varchar,col3 ntext)


The problem here is as how do i search the above four tables on the respective three columns each of each table. Then I wanted to give out the result in a table format with respective data values in the columns EX:
Output table(S.No,Ti,Coli Ti.coli)


The rest i can do it to pull this information from UI and display it. I got stucked up here of searching four tables effectively and with performance ease. I am hoping that somebody would have already faced a similar search issue for their portals and would have used some code.
Any pointers on this is highly appreciated.

Thanks!