Thanks for your tips, esp on the scanning part.

I do have a old scanner (Canon 5000F) lying around at home and I thought I could use it to scan the film later. But I later find that it can only do 35mm film scanning and not 120mm films. Furthermore, my labtop and it seems not communicating after hours of trying, so I just took some snap shots of the prints using my S90.
I started with HP Photosmart with the 135 film and slides. Scanning speed was super slow, producing TIFF and computer was something like 486....
One of my computer crashed and I lost all my old 135 slides scan. :cry: I ditched my Photosmart. I hated myself because I done all the backup on HP TAPE, and I can't find a tape reader.
Later came the Mustek (hurray 120 scan). But dust, slow scan, post processing, all killed me. I kept it for a few months and fungus developed on the scanner!
It was an air conditioned room!
When I returned from US lately, took out the negatives from my dry boxes, and i was shocked to discover the slow aging of film. Yes I know I am getting old too. I sent all my negatives to Konota and another shop as asked for scanning of ALL my film That came out to be over S$1700 each. And that was a batch discounted price. One of them is here, showing my kiddy in 1997 with a project I completed. You can see the aged film fresh from the lab scan.

Yashica 635 Fuji film
This is the lab scan of the film of the same kiddy now with hands longer for money.

Rollei Zeiss Planar HFT 80mm 2.8 Kodak 160 Porta
I still rely on the lab for scanning. I know it cost money, but for results i let them do it. Afterall, I just drop and collect 1-2 days later.
I wish I have the time to play around with scanners. But I don't even know which one to buy now.