Newbie: conditional disply

[5070707]

Hi all,
trying to do the following using infopath 2007
two combo box:
first one - contains manually input values of "software' and
'hardware'
Second one contains manually input values of "word" "infopath" "video
card" "hard drive"

can i (using infopath integrated tools) filter this, that when a user
choose "software" in the 1st combo box
the second one will show only relevant values, IE: "word" "infopath"
or if hardware, only "video card" "hard drive"?

been killing my brain here...(no programming experience at all)
any help would be greatly appreciated even if it's using 3rd parties
suggestion.

Thanks,
Me,