Hi all,i am considering buying a new smartphone(i live in greece)...my phone company gives me a 140
You could get a nexus 4 for that money. It has a quad core processor, 16gb memory, 2 GB ram and is running the most up to date version of android.
But really at the end of the day you need to decide what you actually want the phone to do, read up about the ones you like that are available on the networks where you are. Even though you aren't concerned about a camera most decent phones will have at least an 8mp one. I would say go into a store and have a look at phones and try them out first before you buy.
Numerous single core phones run ICS without any problems, I'm a bit confused about you mentioning worrying about the Xperia because of its having a single core, the HTC One V is also a single core device. While the ability to run ICS on a single core isn't an issue, if you can get a multi core device in your price range that's available on your carrier I would definitely recommend it, doesn't help to future proof a bit especially when purchasing a new phone. Good luck.
Whatever you do, do NOT get an android that's 2.2. or lower.