To start off with try avast 4 and super antispyware pro 4. These are not too memory hungry and should leave you fairly protected.It used to be the case that all-in-one packages weren?t as accessible as separate ones, but this could be a lot different these days. I use a couple of other program on top of these but they require sightd or near-sighted help to run, so may not be worth mentioning here. Super antispyware costs about £15 but that may have changed due to the exchange rate. They also have a lifetime membership option which doesn?t cost much extra. Avast needs work to make it accessible, but I?d be happy to write and post a tutorial on how to do this. Hope this helps, Erica.