Internal servers can't access internet - F5 LTM VE

I'm a newbie to F5 so be easy on me :) . I setup an F5 LTM VE on Vsphere 4.1 and I have setup basic load balancing on 2 VM guest servers I created. I also have my Vsphere host trunked to my physical cisco switch. Everything seems to be working. From my home network I can access my VM guest servers on my Vsphere host but I can't access the internet from my VM guest servers. I tried playing with the default routes on the LTM but no luck. I aslo have the default gateway of the my VM guest web servers set for the self IP (20.20.20.40). I can also ping my SVI on my switch (20.20.20.1) with no problems. If I configure my VM guest web servers default gateway with the SVI of my cisco switch VLAN (20.20.20.1) then I can acess the internet but then it breaks my load balancing. Any help would be appreciated. Here's a little diagram of what I have.

 

 

VLAN 10

 

10.10.10.0 <--- ME

 

|

 

|

 

-----------------------------------------------------

 

- -

 

- Cisco 3550 Switch -

 

- Vlan 10 (10.10.10.1) -

 

- Vlan 20 (20.20.20.1) -

 

- Vlan 30 (30.30.30.1) -

 

- -

 

------------------------------------------------------

 

 

|

 

| <---TRUNKING 10,20,30

 

|

 

--------------------------------------------------------------

 

- Vsphere Host 10.10.10.10 -

 

- F5 LTM VE 10.10.10.5 -

 

- Web Server VS IP 20.20.20.50 -

 

- Web Server Self IP 20.20.20.40 -

 

- Web Server 20.20.20.60 -

 

- Web Server 20.20.20.70 -

 

- -

 

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