I knew I'd miss something. Buildings insurance is covered under you community fee as for contents insurance mine is with my bank ( cajamar) it's €99 a year.
There are a few options for broadband, most people go with a2z communications based on le torre , there are lots of packages but the package most go for consists of free view (with english channels ) broadband and internal phone line( this allows you to call anywhere on the complex and other polaris world resorts, this is €24 a months but you have to but the modem and wifi router so another couple of hundred euros.Have a look on there website for other deals.
http://www.a2ztelecomunicaciones.es/index.php?option=com_content&view=article&id=48%3Anetup&catid=1%3Alatest-news&Itemid=50&lang=en
Another option now resortalia are allowing communal satellite dish onbthe roof so tv is cheaper you can contact your block president when you do buy .
Carastral value is what the town hall value the property , the higher they value it the more pay, so the sale vale may be totally different to the catastral value.
My laywer was recommended to me abd I know Henry used them also, they are fuster asociates based in los alcozares , you also need to allow about €1200-1400 for there services.
Hope this helps