We used a company called InsideRightEspana, www.insiderightespana.com they are based near Balsicas but have showrooms in the Uk for viewing. They offer packages but are also flexible and can provide individual items, we are still awaiting shower screen for phase 2 apt as they are an abnormal size and apparently many on Roda are different. Beware because our tiling in the shower is abysmal, waiting to have it fixed.
It is best to check out prices as they do vary quite a lot and some local shops have much better furniture deals and packages are not always best but you will need to get in the basics.
Roda prices for bath and shower screen and lights were very high but then they know you have to have them but rest of their stuff was reasonably competitive.
You can get quality beds just down the road at Muebles Mar Menor and ours were delivered within an hour of paying, lots of other furnuture as well.
Re rentals, you know that if you rent through Roda you have to commit to 10 months for their use and no guarantee of rental as I have said previously on here, there are lots of properties for rent and prices are very keen at present, things will get better as development nears completion.