I tend to stay away from anemones (this is just my 2 cents so take it or leave it.) they are a pain. They can be successfully kept and have been in the past. However, they are very difficult even for moderatley experienced reefers. I dont touch them for all the reasons mentioned in this thread. Lets look at some pros and cons.
Con
1. sting the ever living crap out of everything.
2. Need alot of light (most do.)
3. You cant have ANY powerheads in the tank or else they will get sucked up in them and die. (had that happen to a huge rose bulb once, sniff.)
4. Some fish will eventually wind up lunch.
5. Most anemones get enormous and can overtake a smaller tank.
Pros
1. great conversation peice (most people notice anemones more than anything else.)
2. Very interesting.
3. can form some cool symbioses (not just clowns, but some shrimps, some hermits, some crabs.)
4. can add some great color and diversity to a reef (again depends on species, some anems are piss ugly.)
So, just do your research (which is what you are doing now, otherwise you wouldnt have asked) and make sure you know, and feel 100 percent confident that you will have no problems with the species youve chosen and you you will be alright. Lastly best of luck to ya buddy.
If you are getting PC's make sure to get the biggest freakin one you can get your hands on with the most watts possible. lighting is like flow, you can never seem to have too much.