Can consider Nikon d5000, canon 500d. these two are the latest and quite popular here...
for live view..it's just lk the LCD u using for normal camera? Depends on whether u prefer to use it or not...may be useful at time.
It's good that you have defined a budget. Your next point could be the Marketplace where you can find Price Guides for various cameras. Next, if you want to know features and compare models then maybe DPReview can be helpful. Read, browse and compare for yourself.
Do note, DSLR is not just like Point and Shoot where you buy the camera and that's it. DSLR open to a huge variety of accessories. Some of them will only fit to one brand (e.g. Canon, Nikon, Sony, Pentax etc.), some fit to all cameras (tripods). So it's rather a camera system that you are getting. Changing later can be quite costly.
All features are tools in your hand, you can use them or not depending on your own preferences and needs.
Once you have shortlisted a few models go to the respective showrooms for a touchy session. See the menu, feel the weight and the handling. Differences in specs can be small, intuitive handling is more important. You don't need to follow the mass jumping on Nikon D-something or Canon xyzD ... there is more than one brand and they are all capable of taking good pictures.
If you're living around Hougang Mall, this weekend the Harvey Norman outlet on level 2 has placed an entire line of the most recent DSLRs - including the D90, D5000 and Canon models - for people to handle and play around with on the counter table.