The C300 is the best value, while the OCZ Vertex 3 is the better all around drive. You can't really go wrong with either drive. They all will provide an nice increase over any mechanical drive (even the worse SSD).
Keep checking stock status daily, Newegg runs out and resupplies SSDs quite often.
Don't be tempted to get the 64 gb Crucial, like I did, if you can afford the 128 gb, write speeds are doubled on the 128.
To add to Techmos' words, I only use the mobo fan pins for components. All of my case fans are connected by molex, which has them running at 100% all of the time. If noise is an issue, I put on some good tunes. Fan controllers are relatively cheap, and a good option for controlling case fan speeds if you feel a need to do so.