The higher end AMD GPUs (7850, 7870, 7950, R9 270X, R9 280X) are proving profitable at the moment with an ROI of around about 1 month or so depending on your electricity costs.
But the recent surge in popularity of Litecoin mining is driving the difficulty up more rapidly - whether the relative value of Litecoin to fiat currency can keep that same ROI level is anyone's guess.
As for how practical it is for you - only you can answer that, how easy is it to obtain AMD GPUs and high wattage power supplies in Israel?
This page shows the reported mining ability of the various AMD cards (in KH/s):
https://litecoin.info/Mining_hardware_comparison#AMD_.28ATI.29Then use one of the many online Litecoin > currency calculators to work out what is or is not profitable for you.