I am not sure what you have heard of, so I will just list some of stuff I have that is roughly in the same genre: Judas Priest, Dio, Saxon, Running Wild, Helloween, Manowar, and Samson.
If you want more inspiration most bands that were part of the New Wave of British Heavy Metal bear at least some similarity. The wikipedia entry has a list apparently:
Hmmm, I see there are a few bands on there that are really far off the Maiden sound, but hopefully the list will be of some use to you. [ Alin75's advice column | Ask Alin75 A Question ]
lisae817 answered Tuesday September 29 2009, 4:15 pm: I looked up some sites and it seems like everyone thinks "In Flames" sounds like Iron Maiden. Although no one could ever take the place of that classic band. I have attached the myspace site so that you can be the judge of it. It sounds good cause most things posted to myspace dont sound as well as this band.
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