I second the idea of the road bike- it's more versatile. Unless triathlon is the only thing you care about (in which case you should get a tri bike) you'll probably be happier with the road bike.

I have one of each. I love my tri bike for time trials and triathlons, but I don't really like it for training rides and riding around. So I spend much more time on my road bike overall. While I love both bikes, if I had to part with one- I'd keep the road bike.

Have fun!