diff --git a/support/checkout-deps.sh b/support/checkout-deps.sh
new file mode 100644
index 00000000..56b17645
--- /dev/null
+++ b/support/checkout-deps.sh
@@ -0,0 +1,82 @@
+#!/usr/bin/env bash
+trap "exit" INT
+
+ismac=0
+iswin=0
+
+archive_ext=tar.gz
+decomp="tar zxvf"
+
+if [ `uname` = "Darwin" ]; then
+  ismac=1
+elif [ `uname` != "Linux" ] && [ -n "${COMSPEC:+1}" ]; then
+  iswin=1
+  archive_ext=zip
+  decomp=unzip
+fi
+
+if [ ! -d "amxmodx" ]; then
+  git clone https://github.com/alliedmodders/amxmodx.git
+fi
+
+if [ $ismac -eq 1 ]; then
+  mysqlver=mysql-5.5.28-osx10.5-x86
+  mysqlurl=http://cdn.mysql.com/archives/mysql-5.5/$mysqlver.$archive_ext
+elif [ $iswin -eq 1 ]; then
+  mysqlver=mysql-noinstall-5.0.24a-win32
+  mysqlurl=http://cdn.mysql.com/archives/mysql-5.0/$mysqlver.$archive_ext
+  # The folder in the zip archive does not contain the substring "-noinstall", so strip it
+  mysqlver=${mysqlver/-noinstall}
+else
+  mysqlver=mysql-5.6.15-linux-glibc2.5-i686
+  mysqlurl=http://cdn.mysql.com/archives/mysql-5.6/$mysqlver.$archive_ext
+fi
+
+if [ ! -d "mysql-5.0" ]; then
+  if [ `command -v wget` ]; then
+    wget $mysqlurl -O mysql.$archive_ext
+  elif [ `command -v curl` ]; then
+    curl -o mysql.$archive_ext $mysqlurl
+  else
+    echo "Failed to locate wget or curl. Install one of these programs to download MySQL."
+    exit 1
+  fi
+  $decomp mysql.$archive_ext
+  mv $mysqlver mysql-5.0
+  rm mysql.$archive_ext
+fi
+
+checkout ()
+{
+  if [ ! -d "$name" ]; then
+    hg clone http://hg.alliedmods.net/$path
+  else
+    cd $name
+    hg pull -u
+    cd ..
+  fi
+}
+
+name=metamod-am
+path=metamod-am
+checkout
+
+name=hlsdk
+path=hl2sdks/hlsdk
+checkout
+
+`python -c "import ambuild2"`
+if [ $? -eq 1 ]; then
+  name=ambuild
+  path=ambuild
+  checkout
+  
+  cd ambuild
+  if [ $iswin -eq 1 ]; then
+    python setup.py install
+  else
+    python setup.py build
+    echo "About to install AMBuild - press Ctrl+C to abort, otherwise enter your password for sudo."
+    sudo python setup.py install
+  fi
+fi