One thing I'll add is that I think it is important to keep the redirect page as small as possible since you'll generate one for every input.

I'd suggest two things to keep it fast and safe.

1. If you pull in a graphic it will be most efficient if you reuse a graphic that was on at least the previous screen (with the same URL). A handy one is the header graphic if you use one.

2. I would keep it straight simple html. A data update is the most critical time (SQL Insert). Don't risk that second. I don't think the risk is high but it doesn't sound like the time for bling.

my .02c on a cold wet May night.