I am currently in the market for a new subwoofer. I watch about 70/30 movies/music in a 12x15x8 room (for the time being) a budget of approx $500 US, Paradigm Monitor 7 and CC-370. w/Sony Da4es. I have been eyeing the HSU VTF-2, SVS 20-39/25-39, Adire Rava. Other than that I am pretty unaware of anything else that could beat or compete these subs. I also have heard that DIY subs can be very cost effective. I am pretty tool illiterate and don't really have axcess to any except for maybe the local hardware store could cut some wood or something so I don't know if this is still possible for me...or is it? It does sound kind of fun and rewarding. Any links to info on DIY would also be appreciated. Any pictures of completed DIY subs that costed around $500 would also be appreciated.How hard is it really, and what are the advantages of DIY. I appreciate any opinions on any of these options.