wave out on sigmatel

Hi, I got a new dell insp 1520 less than 2 months back, and I found out that one of the most basic features of sound card isnt supported on sigma Tel. The initial problem with which I had contacted tech support was to find out a solution to the problem of not being to record sound directly of the sound using certain softwares. After talking to tech support, I was informed that the sound card on my laptop doesnt support wave out which is required to record sound of the sound card. This option exists even on my legacy desktop that I had purchased in 2000. One of the primary reasons for purchasing a laptop is to work with sound mixing and recording, and to my horror,the sound solution that I opted for does not support this basic feature. If I was informed of this, I would have gone for an upgrade at the time of purchasing itself which would not have costed me more than 20$ based on the dell purchase website. Because the sound card is integrated, I have to now get a new external sound card which costs more than 120$. The sound options listed are as below : -Integrated sound -Integrated sound audigy(+20$) there are no technical details specifed though...if only they had mentioned audigy wave-out(or something of that sort) it would have been really helpful. Customer support/care do not want to help me here because I have exceeded the initial 30-day warranty period...I really have no where to go but to spend an extra 100 bucks for another sound card. So folks, be careful when you are dealing with those technically dumb sales people.