[Peptobismol]

ASA. If you have heard Shaykh Hussein Abdul Sattar(db) and Shaykh Mufti Kamaluddin Saheb(db) then you probably have access tothe following websites:
http://www.tasawwuf.org/
http://www.sacredlearning.org/

Both of them are mashaAllah great mashaikh of their time. They are Khulefa(representatives) of Hazrat Maulana Peer Zulfiqar Ahmed Naqshbandi Mujjadadi. You can find more information on Hazrat Saheb on these websites. His lectures are also available online. He has written several books on tasawwuf. One of my favorite works is Tasawwuf wa Saluk. You can find them on http://www.faqirpublications.com/ some of them in pdf format and others you can order online.

Some of his highly recommended works are Love for Allah, Love for the Prophet(sallahu alayhi wasallam) and Wisdom for the Seeker: Letters of Advice.

http://www.tasawwuf.org/writings/index.htm
http://www.tasawwuf.org/basics/index.htm
http://www.tasawwuf.org/basics/what_tasawwuf.htm
http://www.tasawwuf.org/audio/index_urdu.htm
http://www.tasawwuf.org/audio/index_english.htm

Hazrat Saheb's books are available almost everywhere in Pakistan, Islamabad, Karachi, lahore, Faisalabad, jhung(his home town) and other places. The contact info is available online.

Wassalam.