You can use a IDE drive in the A4000 on the native ide port. I've got an 80gig drive in my A4000D and it works fine. The only thing with big drives is you need to have something like IDE Fix or TD64 to get them to work properly. You also need to change the file system to somtheing like Smart File System or Professional File System3. Both are free an you can get the latter on aminet. I used to use Smart File System but I've been toying with PFS3.
Weed