Should work fine, but since I wouldn't want to take a chance of leading you astray, go to the Apple Menu --> About This Mac --> More Info. Under the hardware section there should be a Serial-ATA section, and a hard drive should be listed there. Post the name and model number listed there.
What is a 'good price?' Historically there has not been a huge difference in pricing on these drives, so be sure it is legit.
Here is the info from About This Mac .......
Intel ICH8-M AHCI:
Vendor: Intel
Product: ICH8-M AHCI
Speed: 1.5 Gigabit
Description: AHCI Version 1.10 Supported
FUJITSU MHY2160BH:
Capacity: 160.04 GB (160,041,885,696 bytes)
Model: FUJITSU MHY2160BH
Revision: 0081000D
Serial Number: K43AT7B26KL3
Native Command Queuing: Yes
Queue Depth: 32
Removable Media: No
Detachable Drive: No
BSD Name: disk0
Partition Map Type: GPT (GUID Partition Table)
S.M.A.R.T. status: Verified
Volumes:
Mac HD:
Capacity: 159.7 GB (159,697,911,808 bytes)
Available: 142.04 GB (142,041,923,584 bytes)
Writable: Yes
File System: Journaled HFS+
BSD Name: disk0s2
Mount Point: /