The San Antonio AIDS Foundation has spent twenty three years raising money (their big party fundraiser, the Webb party, is coming up the First Friday of Fiesta!), maintaining and extending educational resources and most importantly, providing compassionate care for men, women and children with AIDS.
Nobody should lack access to care, and nobody has to.
If you or somebody you love (or, hell, anybody you know) has an HIV diagnosis, please get in touch with SAAF. They have confidential testing as well, and will even help you apply for Medicare, Medicaid, SSI and SSDI! They even help out with housing and transportation! Is there anything they can't do, besides endorse bathhouses??
Finally, regardless of your HIV status, sponsoring the Webb party would also be awesome of you. Also: condoms.
Take care of yourselves out there.