Just make sure that you buy a few good quality bi-metal hacksaw blades such as Sandvick/Bahco or the likes, they will last for ages & will cut well.
It's also worthwhile investing in a small spirit level to help you clamp the piece being cut nice & level in the vice.
It will greatly reduce the tendancy for a hacksaw cut to run off line.
I have only got a little one but never had any complaints
