Welcome WillowFae - i thought there must be more than two mumsnetters doing Alpha this autumn 
I do know what you mean about the first evening, it did feel a bit "here's the evidence and now let's move on" i did find myself thinking 'i wonder how many copies it requires to be statistically valid' especially as my faith is all fairly new.
I found the evening last night (week 3) was the first time that the total non-believers felt a bit out of it. Last night was amazing - I found my faith deepening and felt quite moved (yes, more tears!)- we had the usual testimonial at the beginning. This time is was a woman who I very much identified with (similar age, similar age children etc) her journey to faith was much like mine in that she had been brought up in a Christian household, done the whole sunday school thing and never questionned her faith until going to uni. She joined the christian union and suddenly found herself surrounded by fellow christians who seemed to be on another level to her. She was shocked at how she felt and really thought she was missing something + so didn't really have faith like the people around her. She described it as two-tiers - these people were on the top tier, true faith and she was on the bottom tier, those that go to church every week, do all the right things but have never experienced that 'thunder bolt' moment. She then 'parked' her christianity for 10 years until returning to church last year and going on the Alpha course.
The vicar then went on to talk about faith and I identfied with so much that he was saying that it felt like he was directing it at me. By the end I was feeling quite emotional and we finished by saying a prayer together (the one on page 18 of the Why Jesus? book). I really felt like I had moved on and taken another step across the 'bridge'. I think the majority of us felt like that, so when we returned to our discussions we were in another place compared to the people who are 'sitting on the fence'- it was the first time ever that I felt I was a true Christian
.
Really nice bunch of people, we all swapped details last night and are already arranging a night out.
Ooh almost forgot - beef or veggie lasagne with salad and french bread - not quite chicken casserole but still yummy. 
Oxo - have a good time tonight - your puds sound delicious!
Willowfae - 3 people does sounds a bit intense, I suppose it depends on the other people taking part - I do like to sit back and listen to everyone else sometimes, although I do force myself to join in too.
At the risk of blowing my mumsnet 'cover' my church has podcasts for all the Alpha sessions if you are interested just google 'St Marys Reigate' it is on the 'resources' section. I'd be interested to listen to your church's podcasts too, it sounds like they all take a different approach to Alpha.