is it possible that i buy a domain from netfirms for ,, 4.95 dollars and then i choose a free web hosting of other company.

i know that it can be done by changing the nameserver,,but my original question is that ,,netfirms is providing me domain for so cheep ,wont netfirms bound me to use his own webhosting so that they can make there profit from me ,,, ?

looking forward for ur sincere suggestions