Everybody Needs Somebody Sometime. If you need people for your photoshop renderings. Try looking at http://skalgubbar.se/ It features a TON of png files with transparent backgrounds for FREE!!!
Here’s a great tutorial on how to scale and apply patterns in photoshop.
On Alex Hogrefe’s site there is a wealth of tutorials that can help you be faster, better, and stronger at producing informative and captivating visuals that better illustrate your ideas. Spend 10 minutes learning something new that will save you hours in the future. http://www.alexhogrefe.com/tutorials/