Hi! My first post here

I am thinking in buying a new camera and I would like to hear your opinions. I think that these are my best options:
Canon PS S500 (Ixus 500). It's a bit old, but I can get it at a really good price here in Spain (260$).
Canon PS SD400 (Ixus 50). Is it really better than the S500? 390$
Sony DSC-W5. It seems a good camera and I have read that it has many manual controls, 312$
Fuji F10. It seems that this camera can take very good quality photos (better than canon?), 338$
Any other idea?
So what do you think that is the best deal? I'm a bit reticent to buy a Canon because of that famous E18 error. Are there so many cameras affected?
What I'm looking for in order of importance is:
1. image quality
2. robustness/reliability
Budget
* What budget have you allocated for buying this camera? Please be as specific as possible.
300$ or 400$, but I wouldn't like to spend a lot.
Size
* What size camera are you looking for? Or does size not matter at all to you?
I would like an ultracompact one, but I would go for a bigger one if it is really better (image quality) and it has the same price.
Features
How many megapixels will suffice for you?
5mpix
* What optical zoom will you need? (None, Standard = 3x-4x, Ultrazoom = 10x-12x, Other - Specify)
Standard
* How important is "image quality" to you? (Rate using a scale of 1-10)
9
Do you care for manual controls?
Not a lot...
General Usage
* What will you generally use the camera for?
City photos/indoor photos. Also as a travel camera.
* Will you be making big prints of your photos or not?
No, I won't.
Will you be shooting a lot of indoor photos or low light photos?
Yes!
Will you be shooting sports and/or action photos?
No
Thanks in advance!!!