The best website for TV reviews is
www.avforums.com
If you are using an aerial then be aware of the implications of the Irish digital switchover in Oct 2010. Check out
www.boards.ie where they discuss this in detail in the tech sectionl.
If using sky/upc etc then the digital switchover is not relevant to you as signal is already digital.
Decide if you want Plasma/Lcd or LED
Then pick within that section. research research research
Then after buying, keep your old CRT in storage for when the new one gives up within 5 yrs and wish you stayed with a CRT....IMHO the slimline size and screen size is the only advantage, nothing beats a CRT tv in terms of picture quality for what the majority of us watch on a daily basis.
If sports is your thing I think plasma is better than Lcd - check out
www.panasonicshop.ie - they had good deals on plasmas recently but I am not sure if Panansonic are fully compliant with even the expected standard for the Irish digital system in October if you are on an aerial system. If on sky/upc/satellite then no problem.