If your close to Central then I would advise you to come and visit Hazrat Sheikh Mumtaz Ul Haq (db), speaks english and urdu/punjabi very fluently alhumdulilah. From any Central London station its MAX a 30 Min train or tube ride usually about 20/25mins to any of the closest stations. He's based at Streatham Masjid / South London Islamic Centre, the closest tube station would be Tooting Bec which is northern line from here it's a 10min bus ride to the Masjid, closest train station is Streatham Station although Streatham Common and Streatham Hill are not too far as well. There is a Bus Stop right opposite the entrance to the Masjid with buses coming from Tooting/Balham, Brixton and Streatham Hill if you cross the green park area then buses come from Croydon as well. Our silsila is the Naqshbandi Mujaddidi tariqah and Hazrat has khilafat from Hazrat Maulana Naemullah Farooqui (db) who is a khalifa of Hazrat Sheikh Mumtaz Ul Haq db's first Sheikh, Hazrat Murshid-e-Alam Maulana Ghulam Habib sahib (ra). Every Monday after Isha salah (7:15pm) there is a bayaan followed by some dhikr/muraqabah, and if your interested every Friday after Isha (7:15pm) there is a dars on a specific topic, currently its the beginning of a 3-4 week Seerah course. The full address of the Masjid is: Streatham Masjid 8 Mitcham Lane Streatham London SW16 6NN If your interested there are some dars recordings of Hazrat on youtube at the following channels - http://www.youtube.com/user/inkofscholars and http://www.youtube.com/user/hanafifiqh There are some tazkiya related recordings on the streatham masjid website at http://www.streathammosque.org/default.asp?ID=77 towards the bottom there is talks titled Dhikrullah, The Nafs and the Soul and Tazkiya and the Heart. If you have any questions fire away or if you need some directions ask the mods to pass on my details.