What is your requirement, if it is gaming then you will need to think again, not all TFTs are good for gaming and your budget will become a major factor.
If you want to buy starting level TFTs then you will get 17" sub 20k, to be more precise close to 12k(not sure), or maybe 13-14k to 17-18k
Keep in mind that to stick to the native res of even a 17" monitor, I think you will need to upgrade to a high end card atleast once a yr.
Hi end: 25-30k or more.