If you are using WSUS in your environment then you should consider also using System Center Updates Publisher (SCUP) to inject 3rd party updates. You can use SCUP to inject any updates by creating them but also built into the utility are updates for Adobe, HP and Dell. This is great for pushing out updates for programs like Flash Player and Adobe Reader. If you search our blog, you will also find step by step guides to using SCUP for programs like Java.
However, if you are going to use SCUP, then you should also consider setting it up using SSL. To do this, there is an excellent step by step guide available on TechNet here:
Using this guide, you can get your SSL setup for SCUP and start pushing out any 3rd party updates you want!