Yes, the two anemones, giant carpets (S. gigantea) and H. magnifica, that false clowns (A. ocellaris) are found with in nature are by far the most difficult anemone species to keep in aquariums. Those who keep them well, usually have tanks dedicated to those anemones. Yes, you would need to upgrade your lights to 250watt, but even then without any experience keeping anemones, your chances of success would be very slim.
Your best anemone options are BTAs, haddoni carpets or sebae (H. crispa) anemones. Each has its drawbacks.
BTAs are one of the easier host anemones to keep if you start with a healthy one. (They are still not considered easy, just easier). The draw back is that some ocellaris are a little slow to accept them. Although most eventually do, acceptence time can range from a few minutes to 18 months. I've had pairs on both ends of the spectrum.
Haddoni carpets are about the same on the difficulty meter as BTAs. They have a double downside. Again ocellaris may be slow to accept them, in rare cases they never accept them. Haddoni are very capable of catching and eating other fish in your tank, even fish as big as the anemone. The ocellaris clowns themselves have been know to be eaten as well if they rush the acclimation process.
Sebae anemones (H. crispa) are usually accepted by ocellaris clowns in aquariums and only a little more difficult than BTAs and Haddonis. The difficulty lies largely in the fact that most come in bleached (white with purple tips) and/or with very short tentacles. If you can find one with long (over an inch) tan tentacles and a tight mouth, etc.... The chances for success are pretty good.
As far as non-anemones, fuzzy green mushrooms work as hosts sometimes as do green star polyps, and both are very easy to keep.
Some people have luck with LPS like frogspawn or hammer corals, but I don't like to suggest that, because I don't think its alway good for the coral in the long run.
Can you tell I have a lot of free time this week?