How to make external contract function calls from one contract to another?

I'm having a hard time understanding the documentation for making an external function call from one contract to another. In this tutorial there is an example:

contract InfoFeed { function info() returns (uint ret) { return 42; } } contract Consumer { InfoFeed feed; function setFeed(address addr) { feed = InfoFeed(addr); } function callFeed() { feed.info.value(10).gas(800)(); } } 

Which works when I run it from mist.

I am trying to write this contract:

contract Auditor is owned { growId public grower_IDs; mapping (address => bool) public approvedGrows; function Auditor(address GID){ grower_IDs = growId(GID); grower_IDs.transferOwenership(this); } function approveGrower(address target){ if (approvedGrows[target] == true) throw; else approvedGrows[target] = true; } function issueGrowerID(address target) { if (approvedGrows[target] == true && grower_IDs.balanceOf.value(10).gas(1000)(target) == 0) { grower_IDs.makeID.value(10).gas(1000)(target); } else throw; } } 

After you transfer ownership (full source included in the bottom) of the grower_ID contract to the Auditor you are able to approve an address, but I get an intrinsic gas is too low error if I try to issue an ID token. The problem is this line grower_IDs.makeID.value(10).gas(1000)(target);, which is the same form as the example feed.info.value(10).gas(800)(); which does not get the error. Im not really understanding what the .value() is for when making this call. Is there a way to let is run it with an unspecified amount of gas?

Full source:

contract owned { address public owner; bool disabled; function owned() { owner = msg.sender; disabled = false; } modifier onlyOwner { if (msg.sender != owner) throw; } modifier disableable { if (disabled == true) throw; } function trasferOwnership(address newOwner) onlyOwner { owner = newOwner; } event DisabledToggle(bool dis); function disable() onlyOwner { disabled = true; DisabledToggle(true); } function enable() onlyOwner { disabled = false; DisabledToggle(false); } } contract growId is owned { string public name; string public symbol; uint8 public decimals; mapping (address => uint256) public balanceOf; function growId() { name = "growId"; symbol = "GID"; decimals = 1; } function isOwner() returns (bool ret) { if (msg.sender == owner) return true; } function makeID(address target) onlyOwner { balanceOf[target] += 1; Transfer(0, target, 1); } function transfer(address _to) disableable { if (balanceOf[msg.sender] < 1 || balanceOf[_to] + 1 < balanceOf[_to]) throw; if(msg.sender == owner){ balanceOf[msg.sender] -= 1; balanceOf[_to] += 1; Transfer(msg.sender, _to, 1); } if(_to == owner){ balanceOf[msg.sender] -= 1; balanceOf[_to] += 1; Transfer(msg.sender, _to, 1); } else throw; } event Transfer(address indexed from, address indexed to, uint256 value); } contract Auditor is owned { growId public grower_IDs; mapping (address => bool) public approvedGrows; function Auditor(address GID){ grower_IDs = growId(GID); grower_IDs.transferOwenership(this); } function approveGrower(address target){ if (approvedGrows[target] == true) throw; else approvedGrows[target] = true; } function issueGrowerID(address target) { if (approvedGrows[target] == true && grower_IDs.balanceOf.value(10).gas(1000)(target) == 0) { grower_IDs.makeID.value(10).gas(1000)(target); } else throw; } } 

Edit:

The procedure I've been trying is to first make the growId contract, then the auditor using the address of the growId. After I turn over ownership of the growId contract to the Auditors address, I add in one of my accounts as an approved grower. The error is when I try and use the auditor function issueGrowerID. This function calls the growerID function grower_IDs.makeID(target). I have tried it with both grower_IDs.makeID(target) and grower_IDs.value(x).gas(x)(target) and it still says intrinsic gas too low.