No longer young in years but still young at heart! I grew up with a fascination with science and engineering and have retained my interest throughout my career, even though I've moved into softer issues - in fact, a scientific background helps on those issues.
I'm a devout Christian and see no conflicts with true science - for example, I see modern theories about the origins of the universe confirming Genesis accounts; what amazes me is that the writer, 3000 years ago, grasped ideas we're still developing today. He (or she) may not have had the benefit of modern technology but still grasped the fundamental ideas in a way that could be expressed in the language and culture of the time.
Thoughts about SETI and SETI@home
1) I see no reason why it should not exist. I expect we will make contact some day, though it may be a long time after that we realise it. I don't think in terms of benefits or dangers - just the liklihood.
2) We are already transmiiting, like it or not. As far as a deliberate beacon - in which direction? Information in it - I don't think it matters as anything we send now will be long superseded by the time it is received - just a signal that could not be natuaral in origin.
3) My PCs have spare capacity, so it might as well be used. If another project came along using the same distributed processing tecnique came along I could switch. For the moment, it's SETI@home...