i have the 226bw and it's very nice. My only complaint is the lack of vertical adjustments and the screen tends to tilt back slightly. Problems with this is although the horizontal visible range is great the vertical is not so much so and tends to fade at the slightest difference in viewing height, but this can be fixed simply by placing a book under the back of the stand to tilt it forward a little. My problem is im kinda short and tend to slounch down into my chair when watching video so bugs me sometimes but that's just me.
I dont know about the 245bw but the 226 bw is really a 6bit being advertised as offering the color of an 8 bit.
Samsung 226BW - Lauren Barnard - Maximum PC
Personally, i rarely notice the difference and love the model. Besides the vertical issues there aren't many cons from my point of view. And there is the obvious that it's quite aesthetically pleasing with it's design.
Another thing you should look into is if there is issues with the series. For the 226bw there were major quality issues on whether you got an "S", "C", or an "A" series. Basically what factory they were manufactured in. The "S" is reported as being great whereas the "A" was reported as having some issues with back lighting, dead pixels, and using parts that suggested a true response time of 5ms as opposed to the advertised 2ms. "C" series were pretty decent, in fact i think i have one. From what i understand the "C" series have bad out of the box color but after some tweaking you should get a picture as good as the "S." Should look into whether the 245bw also has that issue.
oh, and the 226bw performs pretty well at gaming, never noticed any problems.