Boxing Day desktop reinstall: 14.2 or -current?

Over the Xmas period I will have a little more time on my hands. This is a good opportunity to reconfigure my meaty desktop system which is turning into something of a tower block. It has three internal hard drives and it's about to get its fourth. Thank you for making great cases, Coolermaster. Just as well I got to grips with persistent naming, too.

Currently it runs 14.2 and looks like this:

Code:lysander@psychopig-xxxiv:~$ inxi -F
System: Host: psychopig-xxxiv.netstark Kernel: 4.4.199 x86_64 bits: 64 Desktop: Xfce 4.12.3
Distro: Slackware 14.2
Machine: Type: Desktop Mobo: ASUSTeK model: P5QLD PRO v: Rev X.0x serial: <root required>
BIOS: American Megatrends v: 0305 date: 07/30/2009
CPU: Topology: Quad Core model: Intel Core2 Quad Q8400 bits: 64 type: MCP L2 cache: 2048 KiB
Speed: 2003 MHz min/max: 2003/2670 MHz Core speeds (MHz): 1: 2003 2: 2003 3: 2003 4: 2003
Graphics: Device-1: Advanced Micro Devices [AMD/ATI] Cypress XT [Radeon HD 5870] driver: radeon v: kernel
Display: server: X.Org 1.18.3 driver: radeon resolution: 1920x1080~60Hz
OpenGL: renderer: Gallium 0.4 on AMD CYPRESS (DRM 2.43.0 LLVM 3.8.0) v: 4.1 Mesa 11.2.2
Audio: Device-1: Intel 82801JI HD Audio driver: snd_hda_intel
Device-2: Advanced Micro Devices [AMD/ATI] Cypress HDMI Audio [Radeon HD 5800 Series]
driver: snd_hda_intel
Device-3: Creative Labs SB X-Fi driver: snd_ctxfi
Sound Server: ALSA v: k4.4.199
Network: Device-1: Qualcomm Atheros AR8121/AR8113/AR8114 Gigabit or Fast Ethernet driver: ATL1E
IF: eth0 state: up speed: 100 Mbps duplex: full mac: e0:cb:4e:28:f4:a0
Drives: Local Storage: total: 521.67 GiB used: 364.58 GiB (69.9%)
ID-1: /dev/sda vendor: Hitachi model: HDP725032GLA360 size: 298.09 GiB
ID-2: /dev/sdb vendor: Samsung model: HD160JJ size: 149.05 GiB
ID-3: /dev/sdc vendor: Intel model: SSDSA2M080G2GC size: 74.53 GiB
Partition: ID-1: / size: 29.40 GiB used: 22.25 GiB (75.7%) fs: ext4 dev: /dev/sdc1
ID-2: /home size: 38.78 GiB used: 36.45 GiB (94.0%) fs: ext4 dev: /dev/sdc3
ID-3: swap-1 size: 5.00 GiB used: 199.5 MiB (3.9%) fs: swap dev: /dev/sdc2
Sensors: System Temperatures: cpu: 27.0 C mobo: N/A gpu: radeon temp: 34 C
Fan Speeds (RPM): N/A
Info: Processes: 214 Uptime: 3d 3h 53m Memory: 5.82 GiB used: 1.09 GiB (18.7%) Shell: bash inxi: 3.0.36and the current state of affairs:

Code:lysander@psychopig-xxxiv:~$ df -h
Filesystem Size Used Avail Use% Mounted on
tmpfs 32M 1.2M 31M 4% /run
devtmpfs 8.0M 0 8.0M 0% /dev
/dev/sdc1 30G 23G 5.7G 80% /
tmpfs 3.0G 148M 2.8G 5% /dev/shm
cgroup_root 3.0G 0 3.0G 0% /sys/fs/cgroup
/dev/sdc3 39G 37G 349M 100% /home
cgmfs 100K 0 100K 0% /run/cgmanager/fs
/dev/dm-0 147G 110G 30G 79% /run/media/lysander/b00428ae-xxx-xxx-xxx-xxxxxxxxxxxx
/dev/sda5 299G 197G 102G 66% /media/Media
lysander@psychopig-xxxiv:~$
I just ordered a 240GB SSD which I shall make the main drive for /, /swap and /home. Currently only one drive [the Samsung] is LUKS encrypted, I plan to encrypt all, including /home.

The main question is: 14.2 or -current? If I go for the latter, is it much easier to switch it to 15.0 when it comes out? I've been using -current for about eight months on my laptop and I would say it's [more or less] stable enough to use on this desktop production machine.

As for partitioning, I'm thinking 35GB for /, 5GB swap, and the rest for /home.

Any suggestions for improvement are most welcome.

One question re encryption - LUKS drives/partitions do not automount, which is fine. Is the drive fsck'd after the passphrase is entered?