Setting Up The Network

We're a small company that has outgrown dedicated hosting. We've got 8 servers currently with a well known hosting company, but the servers are starting to get old and we're growing. The cost of moving to colo just seem to make sense to us. We have a bunch of developers, but no network engineers. That being said, we're trying to figure out what we best need to move forward with going colo.

Sometime this month, we'll be purchasing 15-18 servers from Dell. We've already spoken to Colo4Dallas and plan to use their services. So we've got the servers and colo, but have no clue what we need with regard to switches, firewalls and remote-reboot.

1: What type of managed Cisco gigabit switch do we need? We don't know the specific model(s) that would be good for us. We want a hot backup and 24 ports. We manage multiple SSL sites (not sure if this is relevent) and 250+ ip addresses.

1a: Where do we manage ip addresses? We know we'll be getting a block of 250 ip addresses, but how do we assign ip address "a" to server "1"? Can we take that ip address and move it to another server if needed?

2: What type of firewall would be best for us, based on above requirements?

3: DRAC cards are pretty expensive, so we want a IP KVM switch. Any recommendations?

4: Remote reboote -- I've seen power strips out there that do this -- is that what we need, or is there another method we should consider?

5: Is there a company available in Dallas that we could hire to help us with these questions, or in setting everything up once we purchase the equipment?

We're not looking for the cheapest solutions, but the best ones.