Most of the time we use a protocol based off of this paper: A genus- and species-specific nested polymerase chain reaction malaria detection assay for epidemiological studies. ( http://www.ncbi.nlm.nih.gov/pubmed/10348249 )
Depends on the species. If you are interested in P. falciparum, you may want to use reduced annealing and extension temperatures because of the AT rich genome. We generally anneal at 47 oC and extend at 2-4 oC below the melting temperature of the primers.