Hi! I posted in a previous post a couple days ago
Pricing of wedding photography question??ethical and just wanted to make you aware of some insight from a recent bride's perspective.
The wedding will go by fast (well mine did) and you have to be ready for any changes and a lot of people watching you work... as well as trying to photograph your setups and possibly getting in your way. You have to be aware of the time constraint that you are going to be under in order to get those shots done properly... and asking people to get out of your way is part of it. Be prepared to work under a bit of pressure.
I've never photographed a wedding but as I said, I was just married (March 10th). I think as long as you have made it clear that you are not a professional wedding photographer and that their images are not going to be like "Bill and Judy's down the street"

you might be okay and also if she's not an uptight bride.
Also - you really need to talk to the bride about what she wants - please her and it'll be ok. Be sure you're aware of any insecurities she may have about how she wants to be photographed.
On a side note, and just my opinion, if you're going to stand to make money on the prints (outside of deal with bride and groom)... offer to shoot the family's of the wedding party together (like say the bridesmaid with her husband, child boyfriend or whatever) - I'll guarantee they'll buy a print. May sound silly but my photographer asked me if there were any shots that I would like to have photographed and I asked him if he wouldn't mind photographing my bridesmaid with her family so they could have a photo of them later, considering all 3 of them were in the wedding (bridesmaid, vibist ((played wedding music)) and flowergirl). This picture is something the would have never done outside of the wedding and something that they will cherish forever. Remember that people outside of the bride and groom WILL buy prints, especially if their child or family member was in the wedding party. Most people are prepared to buy prints - so don't just cover costs. Just food for thought...
Sorry if I went a little long but I'm trying to think of anything I could suggest from a low maintenence-photographer-bride's perspective.
On that note, and from a techinical/creative aspect - I think it's great you're thinking of taking along your old standbys (such as IR)... I think the bride will value those photos moreso then she may realize once she gets back the 1000's of old standard "pose and shoot" and "smile for the camera with Aunt Betty" shots that she'll get back from various sources.
A bride wants her wedding to be special and unlike any other bride's wedding out there and to stand out (which a lot are alike). The photos are going to be the ONLY thing in the end that are going to represent that day. Sure there will be a video but a video doesn't sit out on your desk at work for your co-workers; nor does it sit in your living room on your mantle for your entire life and looked at almost everyday. So... really...no pressure
Best of luck...
~Demi