I don't think they're seriously making enemies, though. They're not helping or hindering the rebels, they're preventing proliferation of violence in Lebanon where a lot of support for rebels comes from and the people they're going to piss off by doing this already hated them.
Sounds like a precision strike, so minimal collateral damage. If they keep this up the Israeli military might get its reputation back for being one of the best in the world. The past decade hasn't been kind to them in PR terms.
[quote]I don't think they're seriously making enemies, though.[/quote]I agree with this assessment. I would actually argue that they're 'making' friends recently. In fact, [url=http://www.middleeastmonitor.com/articles/middle-east/8038-the-gcc-and-israel-an-unlikely-alliance]Israel[/url] [url=http://www.opendemocracy.net/arab-awakening/hassan-masiky/iranian-%E2%80%9Cthreat%E2%80%9D-unites-saudi-arabia-and-israel]and the Gulf[/url] [url=http://www.ynetnews.com/articles/0,7340,L-4441518,00.html]are actually improving security ties[/url].
Of course, no condemnation of an Israeli strike on Syria should be expected by the Gulf at this point, but their improvement of ties with Israel is still big news within the region. With Iraq preoccupied with its own spillover, Iran and Hezbollah busy with Syria and Lebanon trying not to raise the levels of spillage, a retaliatory strike on Israel is minimal at best. I haven't seen anything about civilian deaths from these strikes, so I also agree with your assessment about "PR terms".