Oh don't worry I am getting a 4890 soon, and in a few months unless a "5000" series or something is out, I plan to CrossFireX it with another 4890, (Or a "5000" series if it's out and affordable)
I read the reviews, I watched the benchmarks I laughed at idiots that gave reviews that were biased and I looked at price VS performance.
Overall the 4890 hit tops for me, however, it's mostly because of the Future Proofing that can be done, or should be done.
Yes the 295 or whatever is a beast, and pricey to boot, and is currently (or was when I read the reviews) the unbeatable card, however unless your willing to dish out that money for 1 GPU just to be "Top System" for a month or whatever.. there's no real big reason to buy it.
In some cases the 4890 out performed the 285 as well, which was a slight surprise to me really, and in most cases it was on par or better then the new "in between" card Nvid released as competition, however last I read the 4890 was still $20 cheaper in price, so for less then 10% gain you spend more then 10% to get "better" so I stuck with the 4890.
Overclocking on this beast too... people have hit the 1Ghz barrier on stock cooling. Although the performance gains for these is roughly about 3%, it can be done, and the benefits may be more drastic with a dual set up.
4890 is definitely the way to go if your on a budget and need a new card, it WILL play all the games out there right now, and MOST of them on cranked out max settings. Crysis as always continues to be a Nvid enhanced game, so ATI cards have a challenge with it. (of course these reviews are based on modest resolutions, if you have a HUGE resolution setting then of course these will change for you, I plan to play at 1920x1080 (or similar) and so I really paid attention to this Resolution range more then any other.)