Pioneer DVR-A06 was first known to the public around March this year as the first DVD+R writer from Pioneer. It is now selling for US$200 in Tokyo, Japan.
http://www.watch.impress.co.jp/akiba/hotline/20030621/ni_i_dd.html
Melcoinc of Japan has introduced its own 4x DVD+RW model based on Sony's latest dual writer, DRU-510A, or its OEM version, DW-U14A. US$230 at PC Success.
http://buffalo.melcoinc.co.jp/products/catalog/item/d/dvm-4244fb/index.html
One of Toshiba's most popular DVD writer drives, Toshiba SD-R5002, is now for nearly US$100.
http://www.watch.impress.co.jp/akiba/hotline/20030621/ni_i_dd.html#dvdrwx2ts