Yes, you may download the first nine tracks from the Ghosts I-IV Collection for free from their website. The download includes:
- High-quality mp3 files (DRM-free, encoded with LAME at 320kbps)
- 40-page pdf book covering the whole release
- Digital Extras pack (wallpapers, icons and other graphics)
You will be sent an email with a one-time download link. 
Other options are:
5 USD Download:
- contains 36 tracks in different formats (mp3, FLAC, Apple)
- and the bonus downloads like that of the free version
10 USD Download:
- the 2 CD package of the album in different formats (mp3, FLAC, Apple)
- and the bonus downloads like that of the free version
…and a lot more to be found on their website.
Anyway, they already ran out of the 300 USD Limited Edition Package. All of the 2500 stocks were sold out. I guess we might see some of those being sold in eBay in a few months since this particular item will be shipped on May 2008.
Tags: Music, Bands, Nine Inch Nails