If you're wanting it to be quiet I'd definitely avoid pumps that go in a bay reservoir. Some of them are fine, but some others (even the same model) can be really noisy because it's hard to dampen the vibration in the optical bay so it's not worth taking the risk.
The best pump is easily a Laing D5 (such as the MCP655 or VPP655), and if you get one make sure it's a Vario version so you can control the pump speed. This pump will support any loop, and with 5 settings, you can choose one which is quiet enough while also giving you enough power to use in the loop.