Since you're coming over to Malaysia soon enough (May!~ Whee~!!), I figured, why not do some slight research on where you can stay if you decide to come over to Kuala Lumpur as well as Sabah? =) One of the more popular sites I've heard of from my friends is called Cari Bilik, which literally means "Find Room" in Malay.. Haha.. My friends mostly are looking for rooms to rent, but they also have short term rental places.
I would suggest going for one of the KL Homestays, which is basically a short term rental. What's good about this site is that you can browse through each state, and it also tells you which part of the state under the description of the room, for example Puchong, Cheras, Kelana Jaya etc. You can save time by looking at these area names first, and skip the ones that are too far from where you want to be. (I can help you with that.. ;p)
Another thing is that they also have reviews from people who have previously stayed there, so you have a bit more insight on what you're getting yourself into.. Haha.. You can also make bookings via this site, so it's safer and easier than doing it through bank payments or waiting till you actually get down here. You'd want to look under Kuala Lumpur, and also Selangor as they're very very close.. People here basically consider it as the same place anyway, and most of the rooms on this site are from these 2 places! =)
They don't have too many options for Sabah, but I'm sure we can help you out there if you decide not to stay with us the whole trip.. =)
Hope it helps, I cant wait for you to get here!!
*does a little dance around her room*
It's going to be AWESOME~!! =D
Loadsa love and hugs,
Calista, your no-longer-7-years-old niece! ;p