Agree with Canada_Dream. Definitely the best materials are the "IELTS Cambridge" books. I have trained with different versions of the book and they have different exercises and blank tests.
I have to admit the actual test is very similar to those practice exercises. So I didn't feel surprised when I finally found myself in front of the test.
Best material definitely.
winnycanada said:
I wanna have a general idea of the proficiency level required
Actually the minimum requirements are already posted in the CIC language table. And it depends on how much you need for your particular score.
Manual:
http://www.cic.gc.ca/english//resources/manuals/op/op06-eng.pdf
(page 35/57)
1. Level
Points (FO = First official language) (SO = Second official language)
High FO=4 SO=2 Listening (7.5-9.0) Reading (6.5-9.0) Writing (6.5-9.0) Speaking (6.5-9.0)
Moderate FO=2 SO=2 Listening (5.5-7.0) Reading (5.0-6.0) Writing (5.5-6.0) Speaking (5.5-6.0)
Basic FO=1 SO=1 Listening (4.5-5.0) Reading (3.5-4.5) Writing (4.0-5.0) Speaking (4.0-5.0)
No proficiency FO=0 SO=0 Listening (<4.5) Reading (<3.5) Writing (<4.0) Speaking (<4.0)
Hope it helps.