Check out this link, it's even got dyno numbers:
JDM Intake Manifold and Kelford Cam Install - Honda Civic - Import Tuner Magazine
Also, talk to h0ndafanat1c, Full Race Geoff, Rick at ImportDPS, Hugh at Evasive Motorsports - all people who either are running or have experience running Kelford cams.
They have nothing but good things to say about them in terms of power, build quality, and reliability. I was seriously thinking about the TSX cams too, but after seeing some dismal dyno numbers, I don't think they're worth the money. At least with the Kelfords, you have the choice of revving them to 9K (with the proper supporting mods and valvetrain, of course), because they keep making more power after 8000K RPM where the TSX cams die off.
I am in a similar position as my SI is my DD and I plan on keeping it basically until it dies (hopefully years from now), so reliability is important. I just think that people get way too caught up in the "OEM factor," with the TSX cams and don't really look at the dyno graphs (I'm talking about tuned before cams and tuned after cams dynos). Kelford, and other DIC cams, are priced right up there with new TSX cams, so why not give them a shot? Anyway, I'm done ranting