It really depends on what your going to do with the phone. 1GB is very limiting if your are running a bunch of apps in the background and want switch back and forth between them.
Just has a look and it says the G has 2GB of ram.
Other phones to consider-
http://www.gsmarena.com/motorola_moto_g_(3rd_gen)-7247.php - the one you want
Aye, but a lot of apps can't be moved to the SD card.
Its not been a huge problem for me, but if you are the kind of person who likes to have a lot, it might be problematic
The 2gb RAM version isn't available in the UK yet. Thanks for the help. I've purchased one from the Amazon link that I posted, along with a 32gb memory card.