Will my computer take Lion

Hi, I would like to update Lightroom 4 to Lightroom 5. I just learnt my Version 10.6.8 Mac 13" 5.2, wont take the upgrade of Lightroom 5, as I need either 10.7 or 10.8 OSX. I have been quite happy with Snow Leopard and dont't really want a dramatic change or disruption to a perfectly working system. However, I thought Lion might be the go. Will my computer take either Lion or Mountain Lion? What other suggestions if I can't change? Or if I need to upgrade what to do? And any other advice about the details appreciated. Thanks

Here are my computer details

Hardware Information:

MacBook (13-inch, Mid 2009)

MacBook - model: MacBook5,2

1 2.13 GHz Intel Core 2 Duo CPU: 2 cores

4 GB RAM

Video Information:

NVIDIA GeForce 9400M - VRAM: 256 MB

Startup Items:

HWNetMgr - Path: /Library/StartupItems/HWNetMgr

HWPortDetect - Path: /Library/StartupItems/HWPortDetect

StartOuc - Path: /Library/StartupItems/StartOuc

System Software:

Mac OS X 10.6.8 (10K549) - Uptime: 0 days 19:17:8

Disk Information:

WDC WD10JPVT-00A1YT0 disk0 : (931.51 GB)

(null) (disk0s1) <not mounted>: 200 MB

Macintosh HD (disk0s2) /: 931.19 GB (429.58 GB free)

MATSHITADVD-R
UJ867A

USB Information:

Micron Built-in iSight

Apple Inc. BRCM2046 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Inc. Apple Internal Keyboard / Trackpad

Apple Computer, Inc. IR Receiver

FireWire Information:

Thunderbolt Information:

Kernel Extensions:

com.deepseasoftware.driver.CDSDAudioCaptureSupport(1.3)

Problem System Launch Daemons:

[failed]com.apple.suhelperd.plist

[not loaded]org.samba.winbindd.plist

Problem System Launch Agents:

[failed]com.apple.Kerberos.renew.plist

Launch Daemons:

[loaded]com.adobe.fpsaud.plist

[loaded]com.adobe.SwitchBoard.plist

[failed]com.apple.qmaster.qmasterd.plist

[loaded]com.sierrawireless.SWoCTool.plist

Launch Agents:

[not loaded]com.adobe.AAM.Updater-1.0.plist

User Launch Agents:

[loaded]com.adobe.AAM.Updater-1.0.plist

[loaded]com.adobe.ARM.202f4087f2bbde52e3ac2df389f53a4f123223c9cc56a8fd83a6f7ae.plist

[loaded]com.divx.agent.postinstall.plist

[loaded]com.google.GoogleContactSyncAgent.plist

[loaded]com.google.keystone.agent.plist

User Login Items:

iTunesHelper

AdobeResourceSynchronizer

AdobeResourceSynchronizer

Mobile Partner

System

uTorrent

Dropbox

Launch Nikon Message Center 2

3rd Party Preference Panes:

Flash Player

Flip4Mac WMV

Growl

Internet Plug-ins:

AdobeExManDetect.plugin

AdobePDFViewer.plugin

AdobePDFViewerNPAPI.plugin

DirectorShockwave.plugin

DivXBrowserPlugin.plugin

Flash Player.plugin

FlashPlayer-10.6.plugin

Flip4Mac WMV Plugin.plugin

iPhotoPhotocast.plugin

JavaAppletPlugin.plugin

QuickTime Plugin.plugin

RealPlayer Plugin.plugin

Silverlight.plugin

User Internet Plug-ins:

Bad Fonts:

None

Top Processes by CPU:

5%EtreCheck

5%firefox

3%syslogd

3%WindowServer

1%activitymonitord

0%fontd

0%Activity Monitor

0%plugin-container

0%coreservicesd

0%blued

Top Processes by Memory:

438 MB
firefox

86 MB mds

78 MB WindowServer

57 MB plugin-container

53 MB iTunes

41 MB Finder

20 MB Dock

20 MB Dropbox

16 MB coreservicesd

16 MB Activity Monitor

Virtual Memory Statistics

1.60 GB
Free RAM

793 MB
Active RAM

847 MB
Inactive RAM

559 MB
Wired RAM

1.26 GB
Page-ins

1.47 GB
Page-outs

NLouis