Fixing my partition scheme...

Okay so I installed Debian just to mess around with stuff, but now I want to remove it. This should be simple, right? Wrong...

I have this:

Code:

/dev/disk0
   #:                   type name               size      identifier
   0:  GUID_partition_scheme                    *149.1 GB disk0
   1:                    EFI                    200.0 MB  disk0s1
   2:              Apple_HFS Macintosh HD       120.0 GB  disk0s2
   3:             Linux Swap                    1.9 GB    disk0s3
   4:   Microsoft Basic Data                    27.0 GB   disk0s4

I don't know why my 27GB ext3 paritition shows up as Microsoft Basic Data, but whatever, it doesn't matter.

All I want to do is turn 3 and 4 into free space, and resize 2 to fill the rest of the drive.

How do I do that?

Also, when I run Boot Camp Assistant, it tells me this:



How do I fix that?

Thanks

 

Don't ask why, but I didn't back up ...

I booted to my Mac OS X DVD, and I ran Disk Utility. I seleted the partitions, and erased them as MacOS HFS+ Journaled partitions. So I had 3 HFS+ partitions. Then I went to the disk and I when to the partition tab, and I selected the middle partition and hit delete. It resized the look of the Macintosh HD one, so I clicked on the second one I wanted to delete, and hit delete on that. Then I hit "partition" and I think it erased the entire harddrive.

Eh... There's only one file on it that's irreplaceable ... it's just gunna be a pain in the ass to have to download all my stuff again ... how do I recover some files from it? I mean, it didn't do a low level format or anything, I'm fairly certain the data still exists on it.