Hostels in Denver

Hiya,

I am going to Denver in next month and now looking for accomodation.
So far I have found these:

1.Denver International Hostel

Has own website (http://www.youthhostels.com/) but they are updating
it and doesn't have much info.

2.Melbourne International Hostel and Hotel

They have own website (http://www.denverhostel.com) but their email
address is not working. It's a shame as otherwise it looks good to me.

3.HI-Denver Hostel of the Rocky Mountains

Also has website (http://www.innkeeperrockies.com/). This is the most
expensive of those three and reservations seem to require credit card.

Also closest camping site seems to be Chief Hosa Lodge & Campground,
any experiences?

Recommendations are more than welcome.