Sharon,
Thanks. So much things to decorate!!! (faint)
Ya, I went to Kirst*n website and the deco doesn't look appealing and I heard the food is not good.
Valerie,
God's presence is so overwhelming that you won't be to hide from it

If God is present, I don't believe you won't feel it. Rather than feeling upset about not having it at a church, why not move on and start concentrating on looking for other nice venues? Don't fret too long over things that you can't change

There will be tons of things to think about during the preparation.
I believe you can use other caterers besides Krist*n at SAM.
SAM is good and affordable but they have certain restrictions on booking, ie, they will let internal pple and event coordinators book first then open to public. If your wedding is this year, u will be able to enquire if the date u want is available. If it's next year, you can only try asking probably in Sept/Oct.
Otherwise, you may try other museums but they are more expensive (going abv 2k just for rental). Armenian church...never been there but you may have a problem trying to speak to someone over the phone. I called so many times but always got a recorded message and I start wondering if the church is still in use

Changi chapel is nice for a smaller scale wedding (max 100). Botanical gardens, Fort canning, country clubs are some other venues to consider too.
If your hubby is not pro having a "church-like" wedding, you will need to resolve this problem while looking for a venue. If he is not for, then are you going to have praise and worship, prayer etc during the ceremony? This is really something you need to spend more time pondering upon.