As of today's date, March 28, 2007:
Total titles (albums) in my collection: 1,501
Total Accl'd Music albums in my collection: 900 (including 654 in the top 1,000)
Plus I have key tracks for another 364 titles in the form of compilations (best ofs, anthologies, box sets, etc.)
This site has really helped me fill in gaps in my collection and expand my tastes.