How do you code a html form and the php code to send through sendmail?

[reagentphx]

I want it to be something like this:

****step1.html****

name:
email:
company:
# of items (drop down list with 1 through 4)
price range (from:___ to:___ )
Message:

****step2.php****

(whatever the code would be to send the form above)

then after page is sent it goes to
****step3.html****
where it says;

"Your form has been sent!!"