Nikon D300
(One of my favorite DSLRs)

Pros;
1. Superb Build
2. Weather Seal
3. This camera is fast; 6 fps Shooting
4. Great Auto-Focus System; 51-Point AF
5. 3inch VGA screen
6. Live View
7. Excellent Viewfinder ; provides %100 coverage
Cons;
1. Anti-Dust system is not so effective.
2. A little bit expensive
Average Body Price ; $1600
Average Kit Price ; $1900

Canon 40D

Pros;
1. Quick handling; a good body shape
2. Live View ability
3. Anti - Dust System
4. PC control
Cons;
1. It is only 10 megapixels, not good enough for a semi-pro SLR
2. Non-VGA screen
3. No HDMI
Average Body Price : $1000
Average Kit Price : $1300

Olympus EVOLT E-510

Pros;
1. There’s a built-in anti-shake system in e510
2. Anti-Dust system is quite effective.
3. Live View feature.
Cons;
1. Small Viewfinder
2. Manual focus is motorised.
Average Kit Price: $560