Yes, we still have stock of these at this price :)
There are no floppy bays on the ML115 G5 but there are 2 5.25" bays so you could get an adapter to mount a floppy-sized drive in one of those. The PSU has 6 SATA power connectors.
As an alternative to the ML310, I have specced up an Acer Altos G330 MK2 server to a similar specification to the ML310 above and it comes out a little cheaper at just £598.76 ex VAT. You can see details of this server here.
We still have plenty of stock of the £169.99 Quad-Core ML115 G5's :)