The Samsung 245 BW & 245T use TN monitors. Not sure if you know this but TN monitors are a low end type monitor and you'll never get the type of colours you do with ACD's. There are 3 types of monitor panels:
Low end TN monitors that have lower colour reproduction but fast response times and generally these screens are good for gaming (because of the fast <5ms response times) and general word processing, etc. The viewing angle is about 160 degrees which means that watching movies on them (especially larger screens) is usually only good for the primary viewer.
Then there's the high end screens called S-IPS panels which are the best screens, have excellent colour reproduction, 178 degree viewing angles, and usually fast response times. These screens are very expensive! They are good for everyone but so expensive that primarily professionals who need accurate colour reproduction use these screens. Gamers who can afford it also use these screens.
The compromise screen is the VA panel (S-PVA, MVA). The better ones (BenQ FP241W/FP241VW & Dell 2407 WPF-HC) have excellent colour reproduction and 178 degree viewing angles, but have slower response times (>5 ms) although usually fast enough for most gamers.
Manufacturers sometimes change their panel types without consumers being aware of it but generally you get what you pay for. For people not too worried about colour reproduction the TN panels are often sufficient and very cheap. All 22" monitors are of the TN panel type. Manufacturers like Samsung sell screens to other companies and then they add their own stuff to it. In other words, many competing companies monitors use the exact same screens.
Hope this helps. I'd still try to maximize settings on your monitor but don't expect it to be like an ACD. I wondered why ACD monitors were so expensive, did some research and found that much of the cost is justified.