3250 has many pros and cons:
*Its inbuilt speaker is louder than 810, but it has only high treble level. U can't hear and mid beats in 5250 unlike 810.
*U said its better to swich on PC instead of bundled speaker. But man...the speaker dun need external power and all u need is to connect it to phone and its size too is very small. Ony 3/4 of the phone size[including both speakers]. U can easily take them on ur pocket.
*3250's cam isn't that bad. But at the view mode, that if when we see the subject through screen before shooting, it seems the image has benn deeply solarized [feel pity]. But after shooting its quite gud. Has decent sharpness, but no way near 810 pic in terms of contrast and color saturation. Sharpness is somewhat same.
*The built-in light is very nice for a torch use[to look inside cabby etc] and also gud for photos.
*Nokia cams has very much grains when used under flourescent tube. But its far better in SE 810.
*Screen: Just have a look at an 810's screen for sometime nd u will mean understand. Its best in contrast, sharpness etc. U wont feel it as small ever.
Nyway they are all sugestions and u can buy what u like. Its upto some personnel taste.