Wow, cheers guys. All good links, I'll try and add them all over the weekend... and this will help me get to a great start of building a showcase to get others interested.
knuckles904: love the bus shelter project
bld: I've not played with RFID yet - and I have friends with cats. MIght try and replicate your work there 
jscott: I've not used xbee yet, I've only made a basic robot - you take it to a new level there
florinc: I'd seen your Wise time clocks before on Make
gbm: My italian is pretty poor but I'll be sure to post up your projects linkign in both english and italian.