I am still gathering information on the Canon 450D. People said that the first batch is running out, but the next batch is coming soon, at a slightly cheaper price. Nice. I planned to buy one within next month or early June, depending on my bank account and the price reduction.
First of all, I was told that the 450D can be controlled completely via a single USB cable now. That means you don't have to buy a separate cable to control the shutter in bulb mode. It saves $80-$100 USD., and of course, it also saves the trouble. Good news indeed.
Secondly, the Live View capability will remove the need for focusing software as well, that's another like $50 USD.
Thirdly, the new kit lens offer decent performance with IS, so I've no urgent need to buy a 10-22mm which saves like 5K HKD.
Next, from the limited results now we have on the Internet, the noise of a 450D improves. Actually, people find it the best for 300D and 350D but then when going to 400D, the noise was getting worse. It's a good sign to see that it's back on track now.
Finally, this will be my first purchase:-
1. Canon 450D with the kit lens for daily, and wide field shots
2. Canon 50mm f/1.8 to play with large aperture
3. Canon 200mm f/2.8 to play with medium focal length deep sky
4. One more set of backup battery
5. 4G class 6 SDHC
Here is a link for more information:-