16G memory or an SSD to upgrade a Macbook?

I'm deciding on whether to spend the money to upgrade my RAM or add an SSD to my Macbook Pro. Here's the stats...

• Early 2011


• MacBookPro8,1


• i7 2.7Ghz


• 8G RAM


• STBD1000400 Seagate Hybrid 1TB drive

I could spend about $130 on either...

• 16G RAM


• 250G Samsung EVO 850 SSD (replacing the DVD drive)

The machine is mostly used for coding, compiling, web browsing, watching movies and listening to music. It is rarely CPU bound. The OS and applications and home directories should fit easily into 250 gigs with my media going onto the 1TB drive.

Thoughts?