The only ones that I saw mentioned in the forum as "working 100% right out of the box" are the Alfa 500mW and the Senao 2511CD, but I had figured they're everyone's favorite not because they're the only ones that work, but because the Alfa has such a high power output and the Senao is a PCMCIA with diversity.
So, I decided not to get either of those because I didn't want to drop $70-$130 for a single card (since I hadn't found a single page that said that different cards using the same chipset will have different injection abilities). Also, I wasn't a big fan of the Senao (diversity or not) since it had MMCX connectors and I wanted to avoid the dB loss of using the tiny LMR-100 (or even smaller) on a pigtail. I like to stay at LMR-195 or above, so RP-SMA is about as small of a connector I want to go.
To *further* complicate things, I'd like to get a card that can work in my laptop (meaning not PCI) or on a PC (meaning no PCMCIA). That leaves mini-PCI (because I have a PCI-to-mini-PCI converter) or USB. You can't change mini-PCI on the fly, so USB is very, very much preferred.
So, is there someplace I should be looking to find the USB, RP-SMA, capable of injection with BT2 interface that I need.