My starting out tips for those interested in shooting with an IR converted camera. Please feel free to add to this with your experiences and share your IR images!
Have your camera converted at Life Pixel
Shoot around f/8-f/11 for best results. Very important. Even with a calibrated lens, focusing in IR is still shifty depending on the amount of IR light. So stopping down will help give you sharp images.
It's not a low light thing, but rather a bright light thing, so keep your ISO as low as possible (while maintaining your f/8-f/11) because you will find that IR can yield lots and lots of stunning highlight data, so you want to maximize your dynamic range by using the lowest possible ISO.
The camera's light meter is still looking at visible light, so there are times when it may seem way off and other times when it's pretty accurate. This is normal, so don't be freaked out by it. I usually shoot in Aperture mode and adjust my EV comp then switch to Manual when I find a good setting. There are times when I need to over or underexpose (according to the meter) by close to 2 or 3 stops, so don't let that freak you out either.
Blown highlights are not white in Color IR but rather Cyan. So your histogram will not show you blown highlights like you're used to (unless of course you have the B&W IR filter). That being said you'll be chimping alot with IR because it's like getting a surprize each time you shoot. But you need to watch out for cyan blooming on important things like skin. I wrote a PS action that removes it if you're going to keep the image in color (let me know if you want it). The process is also described on Life Pixel's website
in a step by step removal.
Color IR needs a custom white balance to work properly. You can set the custom WB from shooting grass in the sun (it's white!) If you shoot in RAW and want color IR, you'll need to use the camera's native RAW software because 3rd party conerters don't read custom WB accurately. Though personally I tend to prefer B&W IR, (so I generally shoot RAW process in Lightroom and make a B&W image via an image preset), but occasionally I do a mixture of RAW and JPG shooting. If using just JPG, bump the sharpness up a few extra notches and take a look at your picture styles/image settings - they have some neat effects on the IR image.
Finally, a good book to buy on IR for weddings and portraits is: Digital Infrared Photography: Professional Techniques and Images by Patrick Rice.