How to tunr FLAC into Apple Lossless


Hi, I am switching over to a Mac and want to change the FLAC files from my PC into Apple Losless in order to use Itunes. I'm worried that if i import the files, Itunes will convert them to lossy (?) MP3 type files. Will Max help me do this? Any ideas are appreciated? Thanks!
sammie
Is AIFF a lossless format or is that full size like WAC files? I ask becasue if it is not lossless, I'm not sure I have the HD space to do the conversion, unless I do a few at a time I guess.
AIFF files are 'full size.'

Apple Lossless files take up about half the space of AIFF or WAV files.
Ok, thanks.....one more question--When choosing AIFF as the encoder, does it matter if I choose linear PCM 16 bit or linear PCM 24 bit under encoder settings?
Encoding (FLAC to AIFF to Apple lossless) is coming along without a hitch using the Max program. I decided to select 16bit linear PCM for better or for worse. Files were originally ripped to FLAC using EAC. Once encoding is completed, Max places a copy in the Itunes library. All tags are correct and accounted for. Process is very smooth. Thanks again for the suggestions/instructions.