Ashtanga Vinyasa Yoga

there's so many types of yoga,
it's hard to know exactly what
each form focuses on.

ei: vinyasa flow, asana, hatha blend,
iyengar, ashtanga…. etc.

im looking for something not to fast paced.
thanks. :]

They are all good depending on how your body is feeling at the time, but for what you are asking I believe the best is "Restorative" yoga. If you can find a yoga studio that offers it, you will feel so relaxed afterwards.
http://www.wikihealth.com/Restorative_yoga_poses