wireless cards for laptop

Hi All, I've been searching for info on supported pcmcia wireless cards for my laptop. A Thinkpad T23... As yet I have found little info other than some comments regarding the chipset. I would really prefer to simply purchase a card, plug it in and be done with it. The problem seems to be that no manufacturer seems forthcoming with chipset info. Can someone suggest a card that they have had success with and tell me the "Retail" brandname and model number? Beats the hell out of buying one, taking it home, dicovering it has an unsupported chipset, returning it and repeating the process again and again. Thanks