I don't think Jordan has Abrams tanks-they operate Challenger-1s(??).Having been to Jordan,Id say most Jordanians are pretty decent people & relatively liberal-the Palis living there are the problem.Syria's conventional military forces can be swatted by Israel anyday-they have severely weakened over the past 20 years.As far as I see,the biggest conventional threats to Israel will come from the Saudis,the UAE & Egypt(when Mubarak gets bumped off)-Iran's nuclear programme is the only non-conventional worry.Im not sure about Saudi Arabia's CSS-2 missiles(They have a range of over 2000kms).They will probably try to get an upgrade from the Chinese.An year or so ago,Mossad leaked a report stating that Pakistan may enter into a secret agreement with the KSA to base nuclear tipped MRBMs on Saudi soil-which would guarantee deterrence against Israel & a 2nd strike capability against India.
The missile range is well enough to reach all of Israel without a problem.