We only did minor initial testing on the Pi using a large micro SD card. It's still a beta project that we haven't put a lot of time into, more of just a proff of concept project, and I wouldn't recommend it for everyday use yet. My guess is that if I was to try putting it into production with a sizeable library (probably music only - and mp3 at that) that I would use a powered usb hub to connect to an external hard drive if I needed more than 32 GB of storage. We used a 64 GB mSD card, but those aren't cheap, so any more than that and I'd look to connect to either network storage or a connected usb drive.
I've written a lot of previous posts regarding cheap setups, but cheap is always relative to one's own budget.
My best sense of starting fresh cheap is to watch for a good deal on a cheap refurb or build kit from Tiger Direct. They often market quad core AMD build kits with 4GB ram and 500GB hard drives for $200. I recommend adding WHS 2011 for $49 from Newegg before they disappear so you end up with reasonably powered hardware, an expandable chasis that you can add more drives to later, and solid server foundation software to run it all on.
This gives you far more power and flexibility than most other options for $250.
We have many users that swear by low powered NAS units that they've hacked into and installed SS, but it never made sense to me when you can get more processing power in a build kit that can be expanded, plus server software based on Server 08R2, and the ability to add as many or more drives as the typical low cost NAS unit can hold.
http://www.tigerdirect.com/applications ... ebone-Kitshttp://www.tigerdirect.com/applications ... u=B69-1508The links above give you an idea of what I'm talking about and I only glanced at all the available options. The kit listed in the second link gives you the following for $219:
GIGABYTE GA-H61M-DS2 Intel H61 Motherboard and Intel Core i3-2100 3.10 GHz Dual Core Processor and Kingston HyperX Red 4GB Memory Module and HEC Orion 485W Power Supply and Ultra X-Blaster Mid- Bundle
That's mid tower case, power supply, mobo, 4GB ram, corei3 CPU for 219 - add WHS2011 for 50 and you've got a nice little rig for well under 300. Of course there are other variants available - this is just one example.
I've been building for 30 years and have installed SS hundreds of times on a wide range of platforms. This would definitely be my first option if I wanted to do a low cost build. Look for a cheap kit with hardware you like and you can't beat WHS2011 for OS - far less headaches than Linux unless you're a Linux pro, plus it gives you the ability to back up your other computers on your network and set up all kinds of other applications on the server as well as using it for setting up general network storage shares.
HTH
Here's another AMD quad core for $179:
http://www.tigerdirect.com/applications ... &CatId=332GIGABYTE GA-78LMT-S2P AMD 760 AM3+ Motherbo Bundle
This Bundle Includes:
•GIGABYTE GA-78LMT-S2P AMD 760 Motherboard - Micro ATX, Socket AM3+, AMD 760G Chipset, 1333MHz DDR3, SATA II (3Gb/s), RAID, 7.1-CH Audio, Gigabit LAN, USB 2.0
•AMD HDT45TWFGRBOX Phenom II X6 1045T Processor - Six Core, 6MB L3 Cache, 3MB L2 Cache, 2.70GHz, Socket AM3, 95W, Fan, Retail
•Corsair CMX4GX3M1A1333C9 XMS3 4GB DDR3 RAM - PC10666, 1333MHz, 4096MB
•Corsair CMX4GX3M1A1333C9 XMS3 4GB DDR3 RAM - PC10666, 1333MHz, 4096MB
•Diablotek CPA-9611B Mid-Tower Case - ATX, µATX, 2 x USB 2.0, 4 x 5.25" Drive Bays, 7 x 3.5" Drive Bays, Black
Just add you favorite hard drive and OS. then you just leave the unit headless on your network. The case has room for 6 hard drives - 3TB drives are most cost effective - times 6 for up to 24TB of storage you can add over time. Cheap to start with plenty of room to grow.