sounds like a nice combo :)
i agree with the others on the substrate issue,as i have had to change the substrate
in my tank for the corys,the barbels rubbed to almost nothing being on gravel,
after some time of being on sand,they grew back.
i moved them to a different tank that at the moment contains gravel,however i will be changing
the back to sand.
if you are worried about plants being in sand you could always split the tank as i will be doing,
gravel at the back for the plants,then the sand at the front,and you can disguise the line
in a couple of ways,either sillicon a divide made from plastic to the bottom of the tank.
or use decor.....wood/rocks.